Production Car Challenge by Sim-Lab - 2025 Season 4
Production Car Challenge by Sim-Lab - iRacing
Sep 16, 2025
-
Dec 08, 2025
Active Season
iRacing
Events
WeatherTech Raceway at Laguna Seca
(Full Course)
USA
iRacing Production Car Challenge by Sim-Lab Week 0
151 time slots
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 2 - Autódromo Hermanos Rodríguez (National Historic)
Sports Car
Official
Scheduled
Round 2
Autódromo Hermanos Rodríguez
(National Historic)
Mexico
iRacing Production Car Challenge by Sim-Lab Week 1
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 3 - Kansas Speedway (Road Course)
Sports Car
Official
Scheduled
Round 3
Kansas Speedway
(Road Course)
USA
iRacing Production Car Challenge by Sim-Lab Week 2
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 4 - Lime Rock Park (West Bend Chicane)
Sports Car
Official
Scheduled
Round 4
Lime Rock Park
(West Bend Chicane)
USA
iRacing Production Car Challenge by Sim-Lab Week 3
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 5 - Nürburgring Grand-Prix-Strecke (BES/WEC)
Sports Car
Official
Scheduled
Round 5
Nürburgring Grand-Prix-Strecke
(BES/WEC)
Germany
iRacing Production Car Challenge by Sim-Lab Week 4
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 6 - Portland International Raceway (Full Circuit)
Sports Car
Official
Scheduled
Round 6
Portland International Raceway
(Full Circuit)
USA
iRacing Production Car Challenge by Sim-Lab Week 5
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 7 - Oulton Park Circuit (Intl w/out Brittens)
Sports Car
Official
Scheduled
Round 7
Oulton Park Circuit
(Intl w/out Brittens)
England
iRacing Production Car Challenge by Sim-Lab Week 6
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 8 - Canadian Tire Motorsports Park
Sports Car
Official
Scheduled
Round 8
Canadian Tire Motorsports Park
(Default)
Canada
iRacing Production Car Challenge by Sim-Lab Week 7
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 9 - Autódromo José Carlos Pace (Grand Prix)
Sports Car
Official
Scheduled
Round 9
Autódromo José Carlos Pace
(Grand Prix)
Brazil
iRacing Production Car Challenge by Sim-Lab Week 8
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 10 - Okayama International Circuit (Full Course)
Sports Car
Official
Scheduled
Round 10
Okayama International Circuit
(Full Course)
Japan
iRacing Production Car Challenge by Sim-Lab Week 9
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 11 - Charlotte Motor Speedway (Roval 2025)
Sports Car
Official
Scheduled
Round 11
Charlotte Motor Speedway
(Roval 2025)
USA
iRacing Production Car Challenge by Sim-Lab Week 10
No scheduled sessions
Production Car Challenge by Sim-Lab - 2025 Season 4 - Week 12 - Watkins Glen International (Boot)
Sports Car
Official
Scheduled
Round 12
Watkins Glen International
(Boot)
USA
iRacing Production Car Challenge by Sim-Lab Week 11
No scheduled sessions