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iR
iRacing Calendar
2026 Season 2

Prototype Challenge - 2026 Season 2 - Fixed

Sports Car
12 weeks
Week 2 active
Car: BMW M Hybrid V8, Cadillac V-Series.R GTP, Acura ARX-06 GTP, Porsche 963 GTP, Ferrari 499P
Drops: 4
Class C (4.0) --> Pro/WC (4.0)Races every 2 hours at :00

Season Timeline

Week 1Week 12

Full Schedule

1

Silverstone Circuit - Grand Prix

Mar 17 — Mar 2320 min

66°F/19°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

2

Sebring International Raceway - International

Mar 24 — Mar 3020 min

78°F/25°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

3

Hockenheimring Baden-Württemberg - Grand Prix

Mar 31 — Apr 620 min

65°F/19°C, Rain chance 27%, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

4

Algarve International Circuit - Grand Prix

Apr 7 — Apr 1320 min

68°F/20°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

5

Long Beach Street Circuit

Apr 14 — Apr 2020 min

67°F/20°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

6

Autodromo Internazionale Enzo e Dino Ferrari - Grand Prix

Apr 21 — Apr 2720 min

66°F/19°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

7

WeatherTech Raceway at Laguna Seca - Full Course

Apr 28 — May 420 min

67°F/19°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

8

Circuit de Spa-Francorchamps - Grand Prix Pits

May 5 — May 1120 min

66°F/19°C, Rain chance 26%, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

9

Road Atlanta - Full Course

May 12 — May 1820 min

67°F/19°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

10

Nürburgring Combined - Gesamtstrecke Long

May 19 — May 253 laps

65°F/19°C, Rain chance None, Detached qual, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

11

Detroit Grand Prix at Belle Isle - Belle Isle

May 26 — Jun 120 min

76°F/25°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate

12

Road America - Full Course

Jun 2 — Jun 820 min

73°F/23°C, Rain chance None, Rolling start, Local enforced cautions, Qual scrutiny - Moderate