SDR LMP3 / GT4 SPORTSCAR CHALLENGE
MULTICLASS SPRINT & ENDURANCE MASTERY
PLEASE JOIN iRACING LEAGUE – 13857
Welcome to the SDR LMP3 / GT4 Sportscar Challenge! Following the official iRacing Falken Tyre Sportscar Challenge circuit calendar, this championship delivers multiclass competition at its finest across 5 action-packed rounds.
Pairing lightweight, high-downforce LMP3 prototypes with door-banging, momentum-based GT4 machinery creates an electric grid dynamic. Success demands raw pace, sharp traffic management, and constant spatial awareness across every stint.
Every round features live stewarding and full live broadcast commentary on the official SDR YouTube Channel:https://www.youtube.com/@sausagedodgersracing
OFFICIAL 5-WEEK CALENDAR
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Round 1 (Tue 22 Sep): Silverstone Circuit – Grand Prix
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Round 2 (Tue 29 Sep): Indianapolis Motor Speedway – Road Course
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Round 3 (Tue 06 Oct): Brands Hatch Circuit – Grand Prix
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Round 4 (Tue 13 Oct): Road Atlanta – Full Course
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Round 5 (Tue 20 Oct): Summit Point Raceway – Full Course
EVENT TIMETABLE (TUESDAY EVENINGS)
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19:00 UK / BST: Open Practice (60 Minutes)
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20:00 UK / BST: Split Open Qualifying (30 Minutes total – strictly 15 minutes allocated per class)
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20:30 UK / BST: Race (90 Minutes – Fuel restricted to 80% to force pit strategy)
CHAMPIONSHIP REGULATIONS & SCORING
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Drop Rounds: 1 drop round across the 5-week championship.
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Fastest Lap Point: 1 bonus championship point awarded for the fastest lap in each class per round.
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Iron Man Attendance Bonus: 5 bonus points added to overall championship standings for complete attendance (0 unserved withdrawals/no-shows).
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Incident Limits:
- Drive-through penalty at 25x
- Subsequent drive-through penalties every 5x thereafter
- Disqualification (DSQ) at 50x
ATTENDANCE, SIGN-OUTS & WITHDRAWALS
Grid spots are competitive. If you cannot attend a scheduled round, you must sign out / withdraw via the SimGrid race tab ahead of time.
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Unnotified No-Show: 15 penalty points.
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Championship Disqualification: Accumulating excessive unserved penalty points will result in removal from the championship roster.
SDR PLATFORM, RULES & PROTESTS
All drivers should link their profiles on our official community website: