iRacing week 2 (Sept 22–28): Petit Le Mans, NASCAR, F4 regionals
iRacing's 2026 Season 4, Week 2 (September 22–28) features the platform's marquee endurance event alongside regular championship series and daily racing opportunities across multiple disciplines.
The headline special event is iRacing Petit Le Mans powered by VCO, a 10-hour endurance race at Road Atlanta. The NASCAR iRacing Series continues its 36-week campaign at Kansas Speedway (Week 30), with fixed and open setup races scheduled across Wednesday through Monday at multiple GMT times. The iRacing Grand Prix Tour reaches Week 17 of 24 at Algarve International Circuit – Grand Prix, featuring the Mercedes-AMG F1 W13 E Performance in both fixed and open configurations.
Other championship series in action include the CREVENTIC Endurance Series (Week 5 of 5 at Barcelona-Catalunya Historic), Dirt 410 Sprint Car Tour (Week 31 of 37 at Eldora), Dirt Super Late Model Tour (Week 33 of 39 at Federated Auto Parts Raceway at I-55), NASCAR Modified Tour (Week 21 of 26 at Myrtle Beach), Super Late Model Tour (Week 21 of 27 at Martinsville), and Vintage Grand Prix Tour (Week 12 of 16 at Algarve, featuring the Lotus 79).
Daily racing series continue hourly throughout the week, including FIA F4 Regional Tours across four regions (Challenge, Americas, Asia-Pacific, Europe) rotating through Knockhill, Canadian Tire Motorsports Park, Motegi, and Misano. GT3 Regional Tours by SENSITHaptics run at Watkins Glen Boot (Americas), Mount Panorama (Asia-Pacific), and Nürburgring Grand-Prix-Strecke (Europe). Ring Meister by LVRY features the Lotus 79 at Nürburgring Nordschleife, while Draft Master Challenge by SIMAGIC runs NASCAR Cup Gen 7 cars at Talladega. Rain Master Challenge by PODIUM1 offers wet-weather GT3 racing at Cadwell Park, and a new Track Day series debuts at Okayama with multiclass racing featuring Porsches, Mazdas, Caterhams, TCR machinery, and other road cars.
The FIA Cross Car Championship also launches this season at Rookie level, with Week 2 action at Daytona Rallycross. The iRacing DTM Series and Nürburgring Endurance Championship take the week off, returning in Week 4.