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iR
iRacing Calendar
2026 Season 4

Caterham 420R Cup

Sports Car
12 weeks
Week 1 active
Car: Caterham 420R
Drops: 4
Class D 4.0 --> Pro/WC 4.0Races every hour at :30

Season Timeline

Week 1Week 12

Full Schedule

1

Oulton Park Circuit - International

Sep 15 — Sep 2120 min

67°F/20°C, Rain chance 2% (7% before session), Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

2

Donington Park Racing Circuit - National

Sep 22 — Sep 2820 min

69°F/21°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

3

Circuit Zandvoort - Grand Prix

Sep 29 — Oct 520 min

69°F/21°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

4

Snetterton Circuit - 200

Oct 6 — Oct 1220 min

72°F/22°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

5

Rudskogen Motorsenter

Oct 13 — Oct 1920 min

66°F/19°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

6

Brands Hatch Circuit - Grand Prix

Oct 20 — Oct 2620 min

67°F/20°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

7

Motorsport Arena Oschersleben - Grand Prix

Oct 27 — Nov 220 min

66°F/19°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

8

Knockhill Racing Circuit - International

Nov 3 — Nov 920 min

66°F/19°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

9

Silverstone Circuit - International

Nov 10 — Nov 1620 min

66°F/19°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

10

Hockenheimring Baden-Württemberg - Grand Prix

Nov 17 — Nov 2320 min

66°F/19°C, Rain chance Slight (Slight before session), Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

11

Nürburgring Grand-Prix-Strecke - Sprintstrecke

Nov 24 — Nov 3020 min

65°F/18°C, Rain chance 97% (99% before session), Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate

12

Circuit de Spa-Francorchamps - Grand Prix Pits

Dec 1 — Dec 720 min

65°F/19°C, Rain chance None, Forecast regenerated for each race, Standing start, Cautions disabled, Qual scrutiny - Moderate