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iR
iRacing Calendar
2026 Season 4

GT4 Falken Tyre Challenge

Sports Car
12 weeks
Week 6 active
Car: Ford Mustang GT4, Mercedes-AMG GT4, BMW M4 G82 GT4 Evo, Aston Martin Vantage GT4, Porsche 718 Cayman GT4 Clubsport MR, McLaren 570S GT4
Drops: 4
Class D 4.0 --> Pro/WC 4.0Races every 2 hours at :30 past

Season Timeline

Week 1Week 12

Full Schedule

1

Silverstone Circuit - Grand Prix

Sep 15 — Sep 2120 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient. FMGT4: 3.0kg, pwr: -0.50% MGT4: 10.0kg, pwr: -1.00% BMWGT4: 5.0kg, pwr: -0.25% AMV4: -7.0kg, pwr: 0.75% P718: 5.0kg

2

Indianapolis Motor Speedway - Road Course

Sep 22 — Sep 2820 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

3

Brands Hatch Circuit - Grand Prix

Sep 29 — Oct 520 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

4

Road Atlanta - Full Course

Oct 6 — Oct 1220 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

5

Summit Point Raceway - Summit Point Raceway

Oct 13 — Oct 1920 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

6

Charlotte Motor Speedway - Roval 2019

Oct 20 — Oct 2620 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

7

Circuit Zolder - Grand Prix

Oct 27 — Nov 220 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

8

Circuito de Navarra - Speed Circuit

Nov 3 — Nov 920 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

9

Mobility Resort Motegi - Grand Prix

Nov 10 — Nov 1620 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

10

Autodromo Nazionale Monza - Grand Prix

Nov 17 — Nov 2320 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

11

Autódromo José Carlos Pace - Grand Prix

Nov 24 — Nov 3020 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient

12

Circuit de Spa-Francorchamps - Grand Prix Pits

Dec 1 — Dec 720 min

Rain possible, Rolling start, Local enforced cautions, Qual scrutiny - Lenient