Portland International Raceway

Portland International Raceway
	;
	Portland International Raceway via the USGS satellite imagery
Location	Portland, Oregon, U.S.
Time zone	GMT−8
Coordinates	45°35′49″N 122°41′45″W / 45.59694°N 122.69583°W
Capacity	30,000
FIA Grade	2
Owner	City of Portland
Operator	E. C. Mueller
Broke ground	1960
Opened	June 1961
Major events	Current:; Formula E; Portland ePrix (2023–2024); IndyCar Series; Grand Prix of Portland; (1984–2007, 2018–2019, 2021–present); NASCAR Xfinity Series; Pacific Office Automation 147 (2022–present); ARCA Menards Series West; West Series races at Portland ; (1986, 2009–2012, 2021–present); Trans-Am West Coast Championship (2017–2019, 2021–present); Former:; IMSA Portland Grand Prix; (1978–1994, 1999–2001, 2004–2006); Pirelli World Challenge; Rose Cup Races; (2001, 2004–2005, 2018–2019); Trans-Am Series (1972, 1975–1987, 1990–1995, 2001, 2004–2005, 2009); NASCAR Craftsman Truck Series; Grainger Industrial Supply 225K; (1999–2000); AMA Superbike Championship (1983–1984)
Website	http://www.portlandraceway.com/
Grand Prix Circuit (2008–present)
Surface	Asphalt/concrete
Length	1.967 miles (3.166 km)
Turns	12
Race lap record	0:58.7403 ( Carlos Muñoz, Dallara DW12, 2018, IndyCar)
Formula E Circuit (2023–2024)
Surface	Asphalt/concrete
Length	2.001 miles (3.221 km)
Turns	12
Race lap record	1:10.650 ( Robin Frijns, Jaguar I-Type 6, 2024, F-E)
Grand Prix Circuit (1992–2007)
Surface	Asphalt/concrete
Length	1.944 miles (3.129 km)
Turns	12
Race lap record	0.59.259 ( Will Power, Lola B02/00, 2006, Champ Car)
Grand Prix Circuit (1984–1991)
Surface	Asphalt/concrete
Length	1.922 miles (3.093 km)
Turns	12
Race lap record	0:57.626 ( Wayne Taylor, Intrepid RM-1, 1991, IMSA GTP)
Grand Prix Circuit (1971–1983)
Surface	Asphalt/concrete
Length	1.915 miles (3.082 km)
Turns	9
Race lap record	1:04.860 ( John Fitzpatrick, Porsche 935 K4, 1982, IMSA GTP)
Full Circuit (1969–1970)
Surface	Asphalt/concrete
Length	1.800 miles (2.896 km)
Turns	9
West Delta Park Circuit (1966–1968)
Surface	Asphalt/concrete
Length	1.964 miles (3.160 km)
Turns	11
West Delta Park Circuit (1961–1965)
Surface	Asphalt/concrete
Length	2.000 miles (3.217 km)
Turns	11

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

The track hosts the IndyCar Series, Formula E, ICSCC and SCCA and OMRRA road racing, the NASCAR Xfinity Series and ARCA Menards Series West, and 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.

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 1.967 mi (3.166 km). Without the chicane, the track has nine turns and a lap length of 1.915 mi (3.082 km). Portland is classified as an FIA Grade Two circuit.^[3]

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, 1991, 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.^[4] 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.^[5] This occurs primarily during drag races, as unleaded fuel (often alcohol based) is used in major weekends.

^ Casey Parks (September 17, 2014). "Portland Parks & Recreation hires former Intel marketer to manage Portland International Raceway". OregonLive. Retrieved July 9, 2020.
^ David Malsher-Lopez (August 30, 2018). "Dixon edges Penske pair, tops Portland test". Motorsport.com.
^ "List of FIA licensed circuits" (PDF) (Press release). Federation Internationale de l'Automobile. 14 December 2018. Retrieved 24 September 2019.
^ Bengt Halvorson (April 16, 2007). "Raceway Seeks Carbon-Neutral Status". The Car Connection. Archived from the original on September 27, 2007.
^ Emma Pattee and Stuart Henigson (June 21, 2023). "Revealed: a toxic metal is in a US city's air – and may be harming children's brains". The Guardian. Retrieved June 21, 2023.

[1] Casey Parks (September 17, 2014). "Portland Parks & Recreation hires former Intel marketer to manage Portland International Raceway". OregonLive. Retrieved July 9, 2020.

[2] David Malsher-Lopez (August 30, 2018). "Dixon edges Penske pair, tops Portland test". Motorsport.com.

[3] "List of FIA licensed circuits" (PDF) (Press release). Federation Internationale de l'Automobile. 14 December 2018. Retrieved 24 September 2019.

[4] Bengt Halvorson (April 16, 2007). "Raceway Seeks Carbon-Neutral Status". The Car Connection. Archived from the original on September 27, 2007.

[5] Emma Pattee and Stuart Henigson (June 21, 2023). "Revealed: a toxic metal is in a US city's air – and may be harming children's brains". The Guardian. Retrieved June 21, 2023.

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