View source for Portland International Raceway

{{Short description|Motorsport track in the United States}}
{{Distinguish|Portland Speedway}}
{{Use mdy dates|date=February 2025}}
{{Infobox motorsport venue
| Name             = Portland International Raceway
| Logo             = Portland International Raceway logo.svg
| image            = Portland International Raceway USGS.jpeg
| image_caption    = Portland International Raceway via the [[USGS]] [[satellite imagery]]
| track_map        = Portland international raceway.svg
| Location         = [[Portland, Oregon]], U.S.
| Coordinates      = {{coord|45|35|49|N|122|41|45|W|type:landmark_region:US-OR|display=inline,title}}
| Time             = [[UTC−08:00]] ([[UTC−07:00]] [[Daylight saving time|DST]])
| Capacity         = 30,000
| Owner            = City of Portland   
| FIAGrade         = 2
| Broke_ground     = 1960
| Opened           = {{Start date and age|1961|06}}
| Closed           = 
| Construction_cost= 
| Architect        = 
| Former_names     = 
| Events           = '''Current:'''<br />'''[[IndyCar Series]]'''<br />''[[Grand Prix of Portland]]''<br />(1984–2007, 2018–2019, 2021–present)<br />'''[[NASCAR Xfinity Series]]'''<br />''[[Pacific Office Automation 147]]'' (2022–present)<br />'''[[ARCA Menards Series West]]'''<br />''[[West Series races at Portland|Portland 112]]'' <br>(1986, 2009–2012, 2021–present)<br />'''[[Trans-Am Series|Trans-Am West Coast Championship]]''' (2017–2019, 2021–present)<br />'''Former:'''<br />[[Formula E]]<br>''[[Portland ePrix]]'' (2023–2024)<br />[[International Motor Sports Association|IMSA]]<br>''[[Portland Grand Prix]]''<br />(1978–1994, 1999–2001, 2004–2006)<br />[[GT World Challenge America|Pirelli World Challenge]]<br>''Rose Cup Races''<br />(2001, 2004–2005, 2018–2019)<br />[[Trans-Am Series]] (1972, 1975–1987, 1990–1995, 2001, 2004–2005, 2009)<br />[[NASCAR Craftsman Truck Series]]<br />''[[Grainger Industrial Supply 225K]]''<br />(1999–2000)<br />[[AMA Superbike Championship]] (1983–1984)
| Miles_first      = True
| Website          = {{URL|https://portlandraceway.com/}}
| Layout1          = Grand Prix Circuit (2008–present)
| Surface          = Asphalt/concrete 
| Length_km        = 3.166
| Length_mi        = 1.967<ref>{{cite web |author=David Malsher-Lopez |title=Dixon edges Penske pair, tops Portland test |website=[[Motorsport.com]] |date=August 30, 2018 |url=http://www.motorsport.com/indycar/news/dixon-edges-penske-pair-tops-portland-test/3168077/}}</ref>
| Turns            = 12
| Record_time      = 0:58.7403 
| Record_driver    = {{flagicon|COL}} [[Carlos Muñoz (racing driver)|Carlos Muñoz]]
| Record_car       = [[Dallara DW12]]
| Record_year      = [[2018 Grand Prix of Portland|2018]]
| Record_class     = [[IndyCar Series|IndyCar]]
| Layout2          = Formula E Circuit (2023–2024)
| Surface2         = Asphalt/concrete 
| Length_km2       = 3.221
| Length_mi2       = 2.001
| Turns2           = 12
| Record_time2     = 1:10.650
| Record_driver2   = {{flagicon|NED}} [[Robin Frijns]]
| Record_car2      = [[Formula E Gen3|Jaguar I-Type 6]]
| Record_year2     = [[2024 Portland ePrix|2024]]
| Record_class2    = [[Formula E|F-E]]
| Layout3          = Grand Prix Circuit (1992–2007)
| Surface3         = Asphalt/concrete 
| Length_km3       = 3.129
| Length_mi3       = 1.944
| Turns3           = 12
| Record_time3     = 0.59.259
| Record_driver3   = {{flagicon|AUS}} [[Will Power]]
| Record_car3      = [[Lola B02/00]]
| Record_year3     = [[2006 Grand Prix of Portland|2006]]
| Record_class3    = [[Champ Car]]
| Layout4          = Grand Prix Circuit (1984–1991)
| Surface4         = Asphalt/concrete 
| Length_km4       = 3.093
| Length_mi4       = 1.922
| Turns4           = 12
| Record_time4     = 0:57.626
| Record_driver4   = {{flagicon|ZAF|1982}} [[Wayne Taylor]]
| Record_car4      = [[Intrepid RM-1]]
| Record_year4     = [[1991 IMSA GT Championship|1991]]
| Record_class4    = [[IMSA GT classes#Grand Touring Prototype|IMSA GTP]]
| Layout5          = Grand Prix Circuit (1971–1983)
| Surface5         = Asphalt/concrete 
| Length_km5       = 3.082
| Length_mi5       = 1.915
| Turns5           = 9
| Record_time5     = 1:04.860
| Record_driver5   = {{flagicon|GBR}} [[John Fitzpatrick (racing driver)|John Fitzpatrick]]
| Record_car5      = [[Porsche 935#935 K2, K3 and K4 by Kremer|Porsche 935 K4]]
| Record_year5     = [[1982 IMSA GT Championship|1982]]
| Record_class5    = [[IMSA GT classes#Grand Touring Prototype|IMSA GTP]]
| Layout6          = Full Circuit (1969–1970)
| Surface6         = Asphalt/concrete 
| Length_km6       = 2.896
| Length_mi6       = 1.800
| Turns6           = 9
| Record_time6     = 
| Record_driver6   = 
| Record_car6      = 
| Record_year6     = 
| Record_class6    = 
| Layout7          = West Delta Park Circuit (1966–1968)
| Surface7         = Asphalt/concrete 
| Length_km7       = 3.160
| Length_mi7       = 1.964
| Turns7           = 11
| Record_time7     = 
| Record_driver7   = 
| Record_car7      = 
| Record_year7     = 
| Record_class7    = 
| Layout8          = West Delta Park Circuit (1961–1965)
| Surface8         = Asphalt/concrete 
| Length_km8       = 3.217
| Length_mi8       = 2.000
| Turns8           = 11
| Record_time8     = 
| Record_driver8   = 
| Record_car8      = 
| Record_year8     = 
| Record_class8    = 
}}

'''Portland International Raceway''' ('''PIR''') is a [[motorsport]] facility in [[Portland, Oregon|Portland]] in the [[U.S. state]] of [[Oregon]]. It is part of the [[Delta Park]] complex on the former site of [[Vanport, Oregon|Vanport]], just south of the [[Columbia River]]. It lies west of the [[Delta Park/Vanport station|Delta Park/Vanport light rail station]] and less than a mile west of [[Interstate 5]].

The track hosts the [[IndyCar Series]], [[ICSCC]] and [[SCCA]] and OMRRA road racing, the [[NASCAR Xfinity Series]] and [[ARCA Menards Series West]], and [[Sports Car Club of America#Autocross|SCCA autocross]] events. Additionally, the PIR grounds are host to OBRA (Oregon Bicycle Racing Association) bicycling races on the track and the surrounding grounds. The facility includes a [[dragstrip]] and a [[motocross]] track.

[[Image:Portland International Raceway entrance.jpg|thumb|Entrance to Portland International Raceway]]
The road course is almost perfectly flat and runs clockwise. Two track configurations are possible. The modern Grand Prix circuit includes a hard [[chicane]] at the end of the front straight, referred to as the "Shelton Chicane" in honor of Vanport racing legend [[Monte Shelton]], and involves 12 turns at a length of {{cvt|1.967|mi|km|abbr=on}}. Without the chicane, the track has nine turns and a lap length of {{cvt|1.915|mi|km|abbr=on}}. Portland is classified as an [[Fédération Internationale de l'Automobile|FIA]] [[List of motor racing circuits by FIA Grade#Grade Two|Grade Two]] circuit.<ref>{{cite press release |url=https://www.fia.com/file/70006/download?token=hDk9-FSg |format=PDF |title=List of FIA licensed circuits |publisher=Federation Internationale de l'Automobile |date=December 14, 2018 |access-date=September 24, 2019}}</ref>

PIR boasts a Winners' List starring some of the most accomplished [[open-wheel]] drivers of all time including [[Mario Andretti]] (1985–1986), [[Emerson Fittipaldi]] (1989), [[Michael Andretti]] (1990–1992), [[Bobby Rahal]] (1987), [[Sébastien Bourdais]] (2004, 2007), [[Will Power]] (2019, 2024), and [[Álex Palou]] (2021, 2023).

The City of Portland is working to establish the track as [[carbon neutral]].<ref>{{cite web |author=Bengt Halvorson |title=Raceway Seeks Carbon-Neutral Status |website=The Car Connection |date=April 16, 2007 |url=http://www.thecarconnection.com/Auto_News/Daily_Auto_News/Raceway_Seeks_Carbon-Neutral_Status.S173.A12221.html |archive-url=https://web.archive.org/web/20070927193328/http://www.thecarconnection.com/Auto_News/Daily_Auto_News/Raceway_Seeks_Carbon-Neutral_Status.S173.A12221.html |archive-date=September 27, 2007}}</ref> In 2023, an investigation revealed the use of [[leaded gasoline]] at the track, which poses significant health risks for spectators and residents near the track.<ref name=":0">{{cite news |url=https://www.theguardian.com/us-news/2023/jun/21/lead-emissions-racetracks-portland-international-raceway |title=Revealed: a toxic metal is in a US city's air – and may be harming children's brains |date=June 21, 2023 |author=Emma Pattee and Stuart Henigson |newspaper=The Guardian |access-date=June 21, 2023}}</ref> This occurs primarily during drag races, as unleaded fuel (often alcohol based) is used in major weekends.

==History==

PIR is built on the former location of [[Vanport, Oregon]], which was destroyed on [[Memorial Day]], May 30, 1948, when a railroad berm broke and water from the [[Columbia River]] flooded the city. After the flood, all that remained were the paved streets and concrete foundations of destroyed buildings.

The first races took place on these old city streets in 1961 during the [[Portland Rose Festival]]. Since then, the Rose Cup has become an annual event. Racing at "West Delta Park",<ref name="portlandraceway.com">{{cite web |url=http://www.portlandraceway.com/history.asp |title=Portland International Raceway History |publisher=Portland International Raceway |archive-url=https://web.archive.org/web/20080129170640/http://www.portlandraceway.com/history.asp |archive-date=January 29, 2008}}</ref> as PIR was known back then, was quite dangerous. Racers leaving the track unexpectedly could collide with leftover concrete foundations or fall into ponds.

Under the threat of losing the Rose Cup races, since many of the sanctioning racing bodies would no longer sanction races due to the deteriorating roads and dangerous obstacles, the track was finally paved in the 1970s.<ref name="portlandraceway.com" />

In 1975, Portland International hosted the [[Trans-Am Series]], the premier series of the [[Sports Car Club of America]], which was won by [[John Greenwood (racing driver)|John Greenwood]], driving a [[Chevrolet Corvette]]. Greenwood would go on to win the [[1975 Trans-Am Series|1975]] [[Trans-Am Series]] Championship.

Beginning in 1984, Portland International began hosting the cars and stars of the [[Championship Auto Racing Teams|PPG Indycar World Series]], with [[Al Unser Jr.]] taking his first win, driving a [[Cosworth]] powered [[March Engineering|March]].

Portland is best-remembered as being the site of two of the closest finishes on a [[Road racing|road course]] in [[American Championship car racing|Indy car racing]] history. In 1986, [[Michael Andretti]] lost fuel pressure on the final turn of the final lap, which allowed his father [[Mario Andretti|Mario]] to catch up and beat him to the finish line by 0.070 seconds. At the time, it was the closest finish of any race in Indy car history.
In 1997, in a three-wide finish, [[Mark Blundell]] beat second place [[Gil de Ferran]] by 0.027 seconds, and beat third place [[Raul Boesel]] by 0.055 seconds. For a road course race, it was the all-time closest finish in CART series history, as well as the closest three-car finish in series history.

In 1999 and 2000, the [[NASCAR Craftsman Truck Series]] ran a race at Portland International Raceway. The race was added after the demise of the ½-mile Portland Speedway that hosted races early in the series. The 1999 running saw the first (and as of 2021, the only) time there were more than one African-Americans competing in the same NASCAR top-three division race, with [[Bill Lester]] and [[Bobby Norfleet]] on the grid.

At the end of 2007 and the beginning of 2008, PIR went through a track renovation. The track was repaved with new asphalt and some minor changes were made to the track layout. Turns 4-7 were widened. The fence on the inside of turn 6 was moved to provide a better sightline through the corner. Turn 7 was sharpened to slow down racers prior to entering the back straight. [[Formula One]]-style curbs were also installed on the track.<ref>{{cite news |author=Jeff Zurschmeide |title=Track debuts smooth moves |work=[[Portland Tribune]] |date=February 15, 2008 |url=http://www.portlandtribune.com/sports/story.php?story_id=120302810218974400 |archive-url=https://web.archive.org/web/20120218223905/http://www.portlandtribune.com/sports/story.php?story_id=120302810218974400 |archive-date=February 18, 2012}}</ref> The track reopened on February 23, 2008, with a ribbon cutting ceremony.

In September 2018, the [[Grand Prix of Portland]] returned after an 11-year hiatus, now an [[IndyCar Series]] race. The qualifying record is 0:57.3467, set by [[Will Power]] during the [[2018 Grand Prix of Portland]]. Will Power (2019, 2024) and [[Álex Palou]] (2021, 2023) have each won twice since the race returned to the calendar.

On September 29, 2021, it was announced that the [[NASCAR Xfinity Series]] would race there in the regular season.

On December 8, 2022, it was announced that [[Formula E]] would race at PIR with a slightly modified layout in the [[2022–23 Formula E World Championship|2022–23 season]] instead of [[Brooklyn Street Circuit]].<ref>{{Cite web |title=Formula E secures IndyCar venue as New York replacement in Season 9 |url=https://the-race.com/formula-e/formula-e-secures-indycar-venue-as-new-york-replacement/ |website=The Race |date=December 7, 2022 |access-date=December 8, 2022 |language=en}}</ref> [[Nick Cassidy]] won the inaugural [[Portland ePrix]] in June 2023, and [[António Félix da Costa]] won both races in June 2024.

==Events==

; Current

* April: [[ICSCC|International Conference of Sports Car Clubs]] ''Rose City Opener''
* May: [[Sports Car Club of America|SCCA Super Tour]]
* June: [[ICSCC|International Conference of Sports Car Clubs]] ''Chicane Challenge'', [[Formula Car Challenge]]
* July: [[Trans-Am Series|Trans-Am West Coast Championship]] ''PIR SpeedTour'', [[Sportscar Vintage Racing Association]]
* August: [[IndyCar Series]] ''[[Grand Prix of Portland]]'', [[NASCAR Xfinity Series]] ''[[Pacific Office Automation 147]]'', [[ARCA Menards Series West]] ''[[West Series races at Portland|Portland 112]]'', [[Indy NXT]], [[USF Pro 2000 Championship]], [[USF2000 Championship]], [[USF Juniors]]
* September: [[ICSCC|International Conference of Sports Car Clubs]] ''The Dash''
* October: [[ICSCC|International Conference of Sports Car Clubs]] ''Festival of Endurance''

; Former

* [[AMA Superbike Championship]] (1983–1984)
* [[American Le Mans Series]]
** ''[[Portland Grand Prix]]'' (1999–2001, 2004–2006)
* [[Atlantic Championship Series]] (1984–1988, 2002–2007)
* [[Barber Pro Series]] (1987–1991, 1999, 2002–2003)
* [[Champ Car World Series]]
** ''[[Grand Prix of Portland]]'' (1984–2007)
* [[Ferrari Challenge#Ferrari Challenge North America|Ferrari Challenge North America]] (2006)
* [[Formula E|FIA Formula E World Championship]]
** ''[[Portland ePrix]]'' (2023–2024)
* [[Global MX-5 Cup]] (2004–2008, 2018–2019)
* [[IMSA GT Championship]]
** ''[[Portland Grand Prix]]'' (1978–1994)
* [[IMSA GT3 Cup Challenge]] (2005)
* [[GT World Challenge America|Pirelli World Challenge]]
** ''Rose Cup Races'' (2001, 2004–2005, 2018–2019)
* [[NASCAR Craftsman Truck Series]]
** ''[[Grainger Industrial Supply 225K]]'' (1999–2000)
* [[NASCAR AutoZone Elite Division, Northwest Series|NASCAR Northwest Series]] (1995–1998, 2000–2001)
* [[North American Touring Car Championship]] (1995–1997)
* [[Stadium Super Trucks]] (2019)
* [[Trans-Am Series]] (1972, 1975–1987, 1990–1995, 2001, 2004–2005, 2009)

==Lap records==

The unofficial outright all-time lap record set during a race weekend is 0:55.760 seconds, set by [[Wayne Taylor]] on the old circuit layout, in an [[Intrepid RM-1]]-[[Chevrolet]], during qualifying for the [[1991 IMSA GT Championship|1991 G.I. Joe's/Camel Grand Prix Presented by Nissan]]. As of August 2024, the fastest official race lap records at Portland International Raceway are listed as:

{| class="wikitable"
!Category!!Time!!Driver!!Vehicle!!Event
|-
! colspan=5 | Grand Prix Circuit: 3.166&nbsp;km (2008–present)<ref name='portland_racingcircuits'>{{cite web |title=Portland International Raceway - Racingcircuits |url=https://www.racingcircuits.info/north-america/usa/portland-international-raceway.html |website=RacingCircuits.info |access-date=June 20, 2023}}</ref><ref name='portland_msportmagazine'>{{cite web |title=Portland - Motor Sport Magazine |url=https://www.motorsportmagazine.com/database/circuits/portland/ |website=[[Motor Sport (magazine)|Motor Sport Magazine]] |access-date=May 24, 2022}}</ref>
|-
| [[IndyCar Series|IndyCar]] || '''0:58.7403''' || [[Carlos Muñoz (racing driver)|Carlos Muñoz]] || [[Dallara DW12]] || [[2018 Grand Prix of Portland]]
|-
| [[Indy NXT]] || '''1:02.8861'''<ref>{{cite web |title=2023 Portland Indy NXT |url=https://www.motorsportmagazine.com/database/races/2023-portland-indy-nxt/ |website=[[Motor Sport (magazine)|Motor Sport Magazine]] |date=September 3, 2023 |access-date=June 2, 2024}}</ref> || [[Nolan Siegel]] || [[Dallara IL-15]] || [[2023 Indy NXT|2023 Portland Indy NXT round]]
|-
| [[USF Pro 2000 Championship|Indy Pro 2000]] || '''1:07.1597'''<ref>{{cite web |title=2018 Pro Mazda Grand Prix of Portland - Race 1 Lap Report |url=https://www.usfpro2000.com/docs/default-source/results/promazda-race-results-r11c9a0e12f48769988125ff0000a718d1.pdf |date=September 1, 2018 |access-date=June 2, 2024}}</ref> || [[Rinus VeeKay]] || [[Tatuus F4-T014#USF2000 and Pro Mazda|Tatuus PM-18]] || [[2018 Pro Mazda Championship|2018 Pro Mazda Grand Prix of Portland]]
|-
| [[Group GT3|GT3]] || '''1:10.791'''<ref>{{cite web |title=Grand Prix of Portland - GT SprintX - GT Class - Round 7 - Saturday 14th July 2018 - Classification - Final |url=https://www.tsl-timing.com/file/?f=PWC/2018/182806rc1pwx.pdf |date=July 14, 2018 |access-date=September 2, 2023}}</ref><ref>{{cite web |title=Grand Prix of Portland GT SprintX Round 7 - Saturday 14th July 2018 - Sector Analysis |url=https://www.tsl-timing.com/file/?f=PWC/2018/182806pwx.pdf |date=July 14, 2018 |access-date=September 2, 2023}}</ref> || [[Miguel Molina (racing driver)|Miguel Molina]] || [[Ferrari 488#488 GT3|Ferrari 488 GT3]] || [[2018 SprintX GT Championship Series|2018 Portland SprintX GT Championship round]]
|-
| [[USF2000 Championship|US F2000]] || '''1:11.2101'''<ref>{{cite web |title=2018 Cooper Tires USF2000 GP of Portland - Race 1 Lap Report |url=https://www.usf2000.com/docs/default-source/results/usf2000-race-results-r1d127db7d339f6ec495b1ff0000570f88.pdf |date=September 1, 2018 |access-date=June 2, 2024}}</ref> || [[Kyle Kirkwood]] || [[Tatuus F4-T014#USF2000 and Pro Mazda|Tatuus USF-17]] || [[2018 U.S. F2000 National Championship|2018 US F2000 Grand Prix of Portland]]
|-
| [[ARCA Menards Series|ARCA Menards]] || '''1:11.922'''<ref>{{cite web |title=2024 ARCA Menards Series West Portland 112 |url=https://www.racingyears.com/race/2024_ARCA_Menards_Series_West_Portland_112 |date=May 31, 2024 |access-date=October 28, 2024}}</ref> || [[William Sawalich]] || [[Toyota Camry]] || [[2024 Portland 112]]
|-
| [[Trans-Am Series#TA|TA1]] || '''1:13.574'''<ref>{{Cite web |title=Trans Am West Round 5 Portland International Raceway July 26–28, 2019 Official TA TA2 GT Race Results |url=http://gotransam.cdn.racersites.com/assets/2019%20Portland%20All%20Classes%20Race%20Official%20Results.pdf |date=July 28, 2019 |access-date=July 2, 2023}}</ref> || [[Greg Pickett]] || [[Ford Mustang (sixth generation)#Motorsports|Ford Mustang Trans-Am]] || [[2019 Trans-Am Series#West Coast Championship|2019 Portland Trans-Am West Coast round]]
|-
| [[Barber Pro Series|Barber Pro]] || '''1:14.122'''<ref>{{cite web |title=2003 Barber Dodge Pro Series - Round 5: Portland, 22nd June - Race Results |url=http://www.dlg.speedfreaks.org/archive/2003/barber.html |date=June 22, 2003 |access-date=November 6, 2024}}</ref> || [[Leonardo Maia]] || [[List of Reynard Motorsport cars|Reynard 98E]] || [[2003 Barber Dodge Pro Series|2003 Portland Barber Pro round]]
|-
| [[USF Juniors]] || '''1:15.0871'''<ref>{{cite web |title=2024 Continental Tire Grand Prix Of Portland - USF Juniors - Race 3 |url=https://www.usfjuniors.com/docs/default-source/results/usf-juniors---race-3---official---results.pdf |date=August 24, 2024 |access-date=August 25, 2024}}</ref> || [[Ariel Elkin]] || [[Tatuus#Racecars|Tatuus JR-23]] || [[2024 USF Juniors|2024 Continental Tire Grand Prix of Portland]]
|-
| [[Trans-Am Series#TA2|TA2]] || '''1:15.114'''<ref>{{cite web |title=2024 Trans Am Western Championship Presented by Pirelli - CUBE 3 Architecture TA2 Series presented by Pirelli - Portland International Raceway July 26th-28th - All Classes Round 5 - Official Race 2 Results |url=https://gotransam.com/assets/All%20Classes%20Official%20Race%202%20Results3.pdf |date=July 28, 2024 |access-date=August 26, 2024}}</ref> || [[Michael LaPaglia]] || [[Ford Mustang (sixth generation)#Motorsport|Ford Mustang Trans-Am]] || [[2024 Trans-Am Series|2024 Portland Trans-Am West Coast round]]
|-
| [[NASCAR Xfinity Series|NASCAR Xfinity]] || '''1:15.253'''<ref>{{cite web |title=2024 Portland NASCAR Xfinity Series Race Statistics |url=https://motorsportstats.com/results/nascar-xfinity-series/2024/pacific-office-automation-147/stats |date=June 1, 2024 |access-date=June 2, 2024}}</ref> || [[Justin Allgaier]] || [[Chevrolet Camaro (sixth generation)#Motorsports|Chevrolet Camaro SS]] || [[2024 Pacific Office Automation 147]]
|-
| [[SRO GT4|GT4]] || '''1:17.660'''<ref>{{cite web |title=2019 Pirelli GT4 America West - Portland - Race 2 - Classification - Final |url=https://www.tsl-timing.com/file/?f=PWC/2019/192806r2ag4a.pdf |date=July 14, 2019 |access-date=September 2, 2023}}</ref> || [[Christian Szymczak]] || [[Mercedes-AMG GT#AMG GT4 (2017–present)|Mercedes-AMG GT4]] || [[2019 GT4 America Series|2019 Portland GT4 America round]]
|-
| [[TCR Touring Car]] || '''1:18.770'''<ref>{{cite web |title=Pirelli World Challenge Touring Car 2018 » Portland International Raceway Round 7 Results |url=https://www.touringcars.net/database/race.php?id=3297 |date=July 14, 2018 |access-date=May 12, 2022}}</ref> || [[Michael James Lewis]] || [[Hyundai i30 N TCR]] || [[2018 Pirelli World Challenge|2018 Portland Pirelli World Challenge round]]
|-
| [[Global MX-5 Cup|Mazda MX-5 Cup]] || '''1:25.3537'''<ref>{{cite web |title=2019 Global Mazda MX5 Cup - Portland International Raceway - Race 2 Lap Report |url=https://www.mx-5cup.com/docs/default-source/results/mx5cup-race-results-r209ff122f8d4765b8b2f6ff0000cf2672.pdf |date=September 1, 2019 |access-date=August 5, 2023}}</ref> || [[Michael Carter (racing driver)|Michael Carter]] || [[Mazda MX-5 (ND)]] || [[2019 Mazda MX-5 Cup|2019 Portland Mazda MX-5 Cup round]]
|-
! colspan=5 | Formula E Circuit: 3.190&nbsp;km (2023–2024)
|-
| [[Formula E]] || '''1:10.650''' || [[Robin Frijns]] || [[Formula E Gen3|Jaguar I-Type 6]] || [[2024 Portland ePrix]] 
|-
! colspan=5 | Grand Prix Circuit: 3.129&nbsp;km (1992–2007)<ref name='portland_racingcircuits' /><ref name='portland_msportmagazine' />
|-
| [[Champ Car]] || '''0:59.259''' || [[Will Power]] || [[Lola B02/00]] || [[2006 Grand Prix of Portland]] 
|-
| [[Championship Auto Racing Teams|CART]] || '''1:00.801''' || [[Bruno Junqueira]] || [[Lola B02/00]] || [[2002 G.I. Joe's 200]]
|-
| [[IMSA GT classes#Grand Touring Prototype|IMSA GTP]] || '''1:02.067'''<ref name='1992_imsa_portland'>{{cite web |title=Portland 2 Hours 1992 |url=https://www.racingsportscars.com/race/Portland-1992-07-26.html |date=July 26, 1992 |access-date=May 13, 2022}}</ref> || [[P. J. Jones]] || [[Eagle MkIII]] || [[1992 IMSA GT Championship|1992 G.I. Joe's/Camel Grand Prix Presented by Nissan]]
|-
| [[Le Mans Prototype#LMP1|LMP1]] || '''1:04.271'''<ref name='2005_alms_portland'>{{cite web |title=2005 RACE RESULTS - OFFICIAL RESULTS |url=http://www.imsaracing.net/2003/events/portland05/ALMS_OfficialRace.pdf |archive-url=https://web.archive.org/web/20061110075759/http://www.imsaracing.net/2003/events/portland05/ALMS_OfficialRace.pdf |publisher=[[IMSA|International Motor Sports Association (IMSA)]] |date=July 30, 2005 |archive-date=November 10, 2006 |access-date=May 13, 2022 |url-status=dead}}</ref> || [[Andy Wallace (racing driver)|Andy Wallace]] || [[MG-Lola EX257]] || [[2005 Portland Grand Prix]]
|-
| [[Le Mans Prototype#LMP2|LMP2]] || '''1:04.488'''<ref name='2006_alms_portland'>{{cite web |title=2006 RACE RESULTS - OFFICIAL RESULTS |url=http://www.imsaracing.net/2006/events/portland/ALMS_OfficialRace.pdf |archive-url=https://web.archive.org/web/20061110073639/http://www.imsaracing.net/2006/events/portland/ALMS_OfficialRace.pdf |publisher=[[IMSA|International Motor Sports Association (IMSA)]] |date=July 22, 2006 |archive-date=November 10, 2006 |access-date=May 13, 2022 |url-status=dead}}</ref> || [[Lucas Luhr]] || [[Porsche RS Spyder]] || [[2006 Portland Grand Prix]]
|-
| [[Le Mans Prototype#History|LMP900]] || '''1:04.909'''<ref>{{cite web |title=American Le Mans Series Portland 2000 |url=https://www.racingsportscars.com/race/Portland-2000-09-10.html |date=September 10, 2000 |access-date=May 13, 2022}}</ref> || [[Emanuele Pirro]] || [[Audi R8 (LMP)|Audi R8]] || [[2000 Rose City Grand Prix]]
|-
| [[Le Mans Prototype#History|LMP]] || '''1:05.451'''<ref>{{cite web |title=2 h 45 min Portland 1999 |url=https://www.racingsportscars.com/race/Portland-1999-08-01-5660.html |date=August 1, 1999 |access-date=January 14, 2023}}</ref> || [[J.J. Lehto]] || [[BMW V12 LMR]] || [[1999 Rose City Grand Prix]]
|-
| [[Formula Atlantic]] || '''1:05.680'''<ref>{{cite web |title=2006 Formula Atlantic Portland |url=https://www.racingyears.com/race/2006%2520Formula%2520Atlantic%2520Portland |date=June 18, 2006 |access-date=July 12, 2022}}</ref> || [[Joe D´Agostino (racing driver)|Joe D´Agostino]] || [[Swift 016.a]] || [[2006 Atlantic Championship|2006 Portland Formula Atlantic round]]
|-
| [[Indy NXT|Indy Lights]] || '''1:06.572'''<ref>{{cite web |title=1995 Portland Indy Lights |url=https://www.motorsportmagazine.com/database/races/1995-portland-indy-lights/ |website=[[Motor Sport (magazine)|Motor Sport Magazine]] |date=June 25, 1995 |access-date=May 31, 2022}}</ref> || [[Greg Moore (racing driver)|Greg Moore]] || [[Lola T93/20]] || [[1995 Indy Lights season#Portland race|1995 Portland Indy Lights round]]
|-
| [[Group GT1#GTS "GT1" (2000–2009)|GT1 (GTS)]] || '''1:08.595'''<ref name='2005_alms_portland' /> || [[Oliver Gavin]] || [[Chevrolet Corvette C6.R]] || [[2005 Portland Grand Prix]]
|-
| [[Le Mans Prototype#History|LMP675]] || '''1:09.394'''<ref>{{cite web |title=2001 RACE RESULTS - OFFICIAL RESULTS |url=http://www.imsaracing.net/races/01portland/ALMSResults.pdf |archive-url=https://web.archive.org/web/20051016113320/http://www.imsaracing.net/races/01portland/ALMSResults.pdf |publisher=[[IMSA|International Motor Sports Association (IMSA)]] |date=August 5, 2001 |archive-date=October 16, 2005 |access-date=May 13, 2022 |url-status=dead}}</ref> || [[Didier de Radigues]] || [[Reynard 01Q]] || [[2001 Grand Prix of Portland]] 
|-
| [[Le Mans Prototype#Name variations|WSC]] || '''1:09.595'''<ref>{{cite web |title=Portland 2 Hours 1994 |url=https://www.racingsportscars.com/race/Portland-1994-08-07.html |date=August 7, 1994 |access-date=May 13, 2022}}</ref> || [[Fermin Velez]] || [[Ferrari 333 SP]] || [[1994 IMSA GT Championship|1994 Grand Prix of Portland]]
|-
| [[IMSA GT classes#Grand Touring Prototype|IMSA GTP Lights]] || '''1:10.849'''<ref name='1992_imsa_portland' /> || [[Parker Johnstone]] || [[Spice SE91P]] || [[1992 IMSA GT Championship|1992 G.I. Joe's/Camel Grand Prix Presented by Nissan]]
|-
| [[IMSA GT classes#Grand Touring Supreme|IMSA GTS]] || '''1:11.475'''<ref name='1993_imsa_gts_portland'>{{cite web |title=Portland 1 Hour IMSA GTS 1993 |url=https://www.racingsportscars.com/race/Portland-1993-08-01g.html |date=August 1, 1993 |access-date=May 13, 2022}}</ref> || [[Darin Brassfield]] || [[Oldsmobile Cutlass]] || [[1993 IMSA GT Championship|1993 G.I. Joe's/Camel Grand Prix]] 
|-
| [[Group GT1#List of FIA GT1 cars|GT2 (GTS)]] || '''1:12.219'''<ref>{{cite web |title=American Le Mans Series Portland 1999 |url=https://www.racingsportscars.com/race/Portland-1999-08-01.html |date=August 1, 1999 |access-date=March 27, 2023}}</ref>|| [[Olivier Beretta]] || [[Dodge Viper GTS-R]] || [[1999 Rose City Grand Prix]]
|-
| [[LM GTE#History|GT2]] || '''1:12.931'''<ref name='2006_alms_portland' /> || [[Jaime Melo]] || [[Ferrari F430#F430 GTC|Ferrari F430 GTC]] || [[2006 Portland Grand Prix]]
|-
| [[Trans-Am Series|Trans-Am]] || '''1:13.992'''<ref>{{cite web |title=1994 TRANS-AM BOX SCORES |url=http://cms.scca.com/documents/Pro%20Racing/Archives/Trans-Am/1994.pdf |archive-url=https://web.archive.org/web/20130518144148/http://cms.scca.com/documents/Pro%20Racing/Archives/Trans-Am/1994.pdf |date=June 25, 1994 |archive-date=May 18, 2013 |access-date=May 28, 2022 |url-status=dead}}</ref> || [[Scott Pruett]] || [[Chevrolet Camaro]] || [[1994 Trans-Am Series|1994 Portland Trans-Am round]]
|-
| [[LM GTE#History|GT]] || '''1:14.392'''<ref>{{cite web |title=2 h 45 min Portland 2001 |url=https://www.racingsportscars.com/race/Portland-2001-08-05.html |date=August 5, 2001 |access-date=January 14, 2023}}</ref> || [[Boris Said]] || [[BMW M3 GTR]] || [[2001 Grand Prix of Portland]]
|-
| [[IMSA GT classes#Grand Touring Over|IMSA GTO]] || '''1:14.613'''<ref name='1993_imsa_gts_portland' /> || [[Brian DeVries]] || [[Oldsmobile Cutlass]] || [[1993 IMSA GT Championship|1993 G.I. Joe's/Camel Grand Prix]] 
|-
| [[IMSA GT classes#Grand Touring Under|IMSA GTU]] || '''1:17.355'''<ref>{{cite web |title=Portland 1 Hour IMSA GTS 1992 |url=https://www.racingsportscars.com/race/Portland-1992-07-26g.html |date=July 26, 1992 |access-date=May 13, 2022}}</ref> || [[John Fergus (racing driver)|John Fergus]] || [[Dodge Daytona]] || [[1992 IMSA GT Championship|1992 G.I. Joe's Camel Gran Prix Presented by Nissan]] 
|-
| [[Super Touring]] || '''1:20.227'''<ref>{{cite web |title=NATCC 1996 » Portland International Raceway Round 6 Results |url=https://www.touringcars.net/database/race.php?id=1082 |date=June 22, 1996 |access-date=May 12, 2022}}</ref> || [[Randy Pobst]] || [[Honda Accord#Motorsport|Honda Accord]] || [[1996 North American Touring Car Championship|1996 Portland NATCC round]]
|-
! colspan=5 | Grand Prix Circuit: 3.093&nbsp;km (1984–1991)<ref name='portland_racingcircuits' /><ref name='portland_msportmagazine' />
|-
| [[IMSA GT classes#Grand Touring Prototype|IMSA GTP]] || '''0:57.626'''<ref name='1991_imsa_portland'>{{cite web |title=Portland 300 Kilometres 1991 |url=https://www.racingsportscars.com/race/Portland-1991-07-28.html |date=July 28, 1991 |access-date=May 13, 2022}}</ref> || [[Wayne Taylor]] || [[Intrepid RM-1]] || [[1991 IMSA GT Championship|1991 G.I. Joe's/Camel Grand Prix]] 
|-
| [[Championship Auto Racing Teams|CART]] || '''1:00.058'''<ref>{{cite web |title=1991 Portland Champ Cars |url=https://www.motorsportmagazine.com/database/races/1991-portland-champ-cars/ |website=[[Motor Sport (magazine)|Motor Sport Magazine]] |date=June 23, 1991 |access-date=May 13, 2022}}</ref> || [[Michael Andretti]] || [[Lola T91/00]] || [[1991 CART PPG Indy Car World Series|1991 Budweiser/G.I.Joe's 200]] 
|-
| [[IMSA GT classes#Grand Touring Over|IMSA GTO]] || '''1:02.772'''<ref name='1991_imsa_gto_portland'>{{cite web |title=Portland [GT] 1991 |url=https://www.racingsportscars.com/race/Portland-1991-07-28-5957.html |date=July 28, 1991 |access-date=May 13, 2022}}</ref> || [[Dorsey Schroeder]] || [[Ford Mustang#Road racing|Ford Mustang]] || [[1991 IMSA GT Championship|1991 G.I. Joe's/Camel Grand Prix]]
|-
| [[IMSA GT classes#Grand Touring Prototype|IMSA GTP Lights]] || '''1:03.495'''<ref name='1991_imsa_portland' /> || [[Ruggero Melgrati]] || [[Spice SE89P]] || [[1991 IMSA GT Championship|1991 G.I. Joe's/Camel Grand Prix]] 
|-
| [[IMSA GT classes#American Challenge|IMSA AAC]] || '''1:07.996'''<ref name='1991_imsa_gto_portland' /> || [[Tommy Riggins]] || [[Oldsmobile Cutlass]] || [[1991 IMSA GT Championship|1991 G.I. Joe's/Camel Grand Prix]]
|-
| [[IMSA GT classes#Grand Touring Under|IMSA GTU]] || '''1:08.872'''<ref name='1991_imsa_gto_portland' /> || [[John Fergus (racing driver)|John Fergus]] || [[Dodge Daytona]] || [[1991 IMSA GT Championship|1991 G.I. Joe's/Camel Grand Prix]] 
|-
| [[Trans-Am Series|Trans-Am]] || '''1:11.090'''<ref>{{cite web |title=Trans-Am Portland 1984 |url=https://www.racingsportscars.com/race/Portland-1984-06-16.html |date=June 16, 1984 |access-date=May 13, 2022}}</ref> || [[Greg Pickett]] || [[Mercury Capri]] || [[1984 Trans-Am Series|1984 Portland 200]] 	
|-
! colspan=5 | Grand Prix Circuit: 3.082&nbsp;km (1971–1983)<ref name='portland_racingcircuits' /><ref name='portland_msportmagazine' />
|-
| [[IMSA GT classes#Grand Touring Prototype|IMSA GTP]] || '''1:04.860'''<ref name='1982_imsa_portland'>{{cite web |title=Portland 100 Miles 1982 |url=https://www.racingsportscars.com/race/Portland-1982-08-01.html |date=August 1, 1982 |access-date=May 13, 2022}}</ref> || [[John Fitzpatrick (racing driver)|John Fitzpatrick]] || [[Porsche 935#935 K2, K3 and K4 by Kremer|Porsche 935 K4]] || [[1982 IMSA GT Championship|1982 G.I. Joe's/Toyota Grand Prix]] 
|-
| [[IMSA GT classes#Grand Touring Experimental|IMSA GTX]] || '''1:06.140'''<ref name='portland_imsa_1981'>{{cite web |title=Portland 100 Miles 1981 |url=https://www.racingsportscars.com/race/Portland-1981-08-02.html |date=August 2, 1981 |access-date=January 30, 2023}}</ref> || [[John Paul Jr. (racing driver)|John Paul, Jr.]] || [[Lola T600]] || [[1981 IMSA GT Championship|1981 G.I. Joe's/Camel Grand Prix]]
|-
| [[Trans-Am Series|TO]] || '''1:08.170'''<ref>{{cite web |title=Trans-Am Portland 1979 |url=https://www.racingsportscars.com/race/Portland-1979-06-10-6679.html |date=June 10, 1979 |access-date=January 30, 2023}}</ref> || [[John Paul Sr. (racing driver)|John Paul]] || [[Porsche 935|Porsche 935 JLP-1]] || [[1979 Trans-Am Series|1979 Portland Trans-Am round]]
|-
| [[IMSA GT classes#Grand Touring Over|IMSA GTO]] || '''1:10.540'''<ref name='1982_imsa_portland' /> || [[Don Devendorf]] || [[Nissan 280ZX#Racing|Nissan 280ZX Turbo]] || [[1982 IMSA GT Championship|1982 G.I. Joe's/Toyota Grand Prix]] 
|-
| [[Group 4 (motorsport)|Group 4]] || '''1:11.920'''<ref name='portland_imsa_1981' /> || [[Dave Cowart]] || [[BMW M1]] || [[1981 IMSA GT Championship|1981 G.I. Joe's/Camel Grand Prix]]
|-
| [[IMSA GT classes#Grand Touring Under|IMSA GTU]] || '''1:13.780'''<ref>{{cite web |title=Portland 3 Hours 1983 |url=https://www.racingsportscars.com/race/Portland-1983-07-31.html |date=July 31, 1983 |access-date=May 13, 2022}}</ref> || [[Bob Bergstrom]] || [[Porsche 924|Porsche 924 Carrera GTR]] || [[1983 IMSA GT Championship|1983 G.I. Joe's Grand Prix]]
|-
| [[Trans-Am Series|TU]] || '''1:21.330'''<ref>{{cite web |title=Trans-Am Portland - Two Five Challenge 1972 |url=https://www.racingsportscars.com/race/Portland-1972-09-17.html |date=September 17, 1972 |access-date=January 30, 2023}}</ref> || [[Lee Midgley]] || [[Alfa Romeo 105/115 Series Coupés#GT and GTV models|Alfa Romeo GTV]] || [[1972 Trans-American Sedan Championship|1972 Portland Trans-Am round]]
|-
|}

==Lead contamination==
40% of races at the Portland International Raceway use [[leaded gasoline]].<ref name=":0" /> The urban location of the track, near the [[Portsmouth, Portland, Oregon|Portsmouth]], [[Kenton, Portland, Oregon|Kenton]] and [[Piedmont, Portland, Oregon|Piedmont]] neighborhoods, has raised concerns about the potential for the Raceway to contribute to [[lead poisoning]] of nearby residents and a movement to end the use of leaded fuels at the Raceway.<ref>{{cite web |title=Leadfreeparks.com ENDING LEADED FUEL AT PIR |url=https://historickenton.com/lead/ |website=Historic Kenton |access-date=June 23, 2023}}</ref> Testing conducted at PIR indicated that concentrations of lead in public areas could not conclusively be determined by traffic on the Raceway since the track sits next to heavy highway traffic and industrial complexes. The dissipation of leaded fuels before reaching the general attendees coupled with ever-efficient modern engines minimized any significant health risks to general attendees.<ref>{{cite web |title=G2 Consultants Industrial Hygiene Assessment Report |url=https://portlandraceway.com/file/143/10159-38_PPR_PIR_Lead_Assessment_Report_100517.pdf |website=Portland Raceway |access-date=February 6, 2025}}</ref>

==IndyCar race history==
{{Main|Grand Prix of Portland}}

==IMSA Sports Car race history==
{{Main|Portland Grand Prix}}
==Formula E race history==
{{Main|Portland ePrix}}

==See also==
* [[List of sports venues in Portland, Oregon]]

== References ==
{{Reflist}}

== Further reading ==
{{Refbegin}}
* {{cite book |last=Zurschmeide |first=Jeffrey |title=Portland International Raceway |publisher=[[Arcadia Publishing]] |year=2013 |isbn=978-1-4671-3065-3}}
{{Refend}}

==External links==
{{Commons category}}
* [http://www.portlandraceway.com/ Portland International Raceway official site]
* [http://www.trackpedia.com/wiki/Portland_International_Raceway Trackpedia guide to driving this track]
* [https://www.friendsofpir.com/ Friends of PIR]
* [https://www.omrra.com/ Oregon Motorcycle Road Racing Association] OMRRA
* [http://www.supercarsunlimited.com/pirbrackets/history/history.htm Unofficial History of PIR]
* [https://www.youtube.com/watch?v=dPxY3xQOzVc Aerial imagery from Google Earth of Portland International Raceway as an overlay on an old photo of Vanport City, Oregon]
* [https://www.youtube.com/watch?v=tVXeXvRjjfc Short video about, and on the history, of Portland International Raceway]

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{{IMSA GT circuits}}
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[[Category:Sports venues in Portland, Oregon]]
[[Category:Motorsport venues in Oregon]]
[[Category:Formula E circuits]]
[[Category:IndyCar Series tracks]]
[[Category:NASCAR tracks]]
[[Category:NHRA Division 6 drag racing venues]]
[[Category:Champ Car circuits]]
[[Category:American Le Mans Series circuits]]
[[Category:IMSA GT Championship circuits]]
[[Category:1960 establishments in Oregon]]
[[Category:Kenton, Portland, Oregon]]
[[Category:Sports venues completed in 1960]]
[[Category:Portland ePrix]]