When was the track built?

PIR sits within Delta Park on the former site of Vanport, a wartime housing city destroyed by the Columbia River flood on Memorial Day 1948. Local enthusiasts laid out a road course in the early 1960s, with permanent racing established in 1961. The venue evolved into a Northwest hub for pro racing, adding modern safety features while keeping its compact, flowing character.

When was its first race?

The circuit’s first race events took place in 1961. Top-level open-wheel arrived in 1984 with CART’s Portland round, cementing PIR as a staple of American road racing alongside long runs of IMSA sports cars and today’s IndyCar and NASCAR events.

What's the circuit like?

• Festival Curves chaos: A long front straight feeds a quick left-right-left at T1-2-3 that compresses the field on starts and restarts. Track limits and penalty lane management can decide races.
• Launch onto the back straight: The heavy stop and traction test at Turn 7 set top speed for the lap and enable passes into T10.
• Flat, technical rhythm: With minimal elevation, time is in braking markers, rotation on entry and clean exits across painted surfaces.
• Strategy themes: Cautions around T1 and pit windows near halfway often shuffle order. Undercuts work if you can rejoin into clean air before the Festival Curves queue.
• Benchmark pace: Official IndyCar race lap record 0:58.7403; outright qualifying flyers dip into the low 0:57s on a rubbered-in surface.

Lap records and benchmarks (by series)

• IndyCar (race lap): 0:58.7403 - Carlos Muñoz, 2018 Grand Prix of Portland.
• Indy NXT (race lap): 1:02.8861 - Nolan Siegel, 2023.
• GT3 (race lap): 1:10.791 - Miguel Molina, Ferrari 488 GT3, 2018.
• USF2000 (race lap): 1:11.1947 - Thomas Schrage, 2025.
• Trans-Am TA1 (race lap): 1:13.574 - Greg Pickett, 2019.
• NASCAR Xfinity (race lap): 1:14.552 - Connor Zilisch, 2025.
• Historic outright (qualifying, prior layout): 0:55.760 - Wayne Taylor, IMSA GTP Intrepid RM-1, 1991.

Why go?

A fan-friendly park setting with multiple viewing berms and quick access to downtown Portland. Starts into the Festival Curves are must-see, and the T7 hairpin plus the T10-12 sequence generate passes all race long. The paddock is open and the schedule packs in top series and strong support cards.

Where's the best place to watch?

• Festival Curves (T1-2-3): Starts, restarts, penalty-lane drama and three-wide bravery into the chicane.
• Turn 7 hairpin: Heaviest braking - perfect for late moves that set up the entire back straight.
• Turn 10 braking zone: End of the back straight - classic out-braking and switchbacks into T11-12.
• Main grandstand: Pit stops, podium and the sprint to the flag with full view of the Festival entry.

Not just IndyCar: headline series at PIR

IMSA/ALMS heritage: The Portland Grand Prix ran from 1978 to 2006 across IMSA and ALMS eras.

NASCAR Xfinity and ARCA: Modern stock-car showcases on the GP course bring penalty-lane tactics at T1.

Road to Indy ladder: Indy NXT, USF Pro 2000 and USF2000 produce deep grids and relentless drafting to T1 and T10.