Willow Springs International Raceway - Big Willow
Seasons 21s1 to 26s1 (21 seasons) — generated March 16, 2026 12:32 UTC
3,646
Total Races
19,306
Unique Drivers
20
Series
Popularity Over Seasons
Series Usage
| # | Series | Races | Unique Drivers | Seasons | Scheduled |
|---|---|---|---|---|---|
| 1 | Toyota GR86 Cup by SIMAGIC | 1,100 | 5,654 | 4 | — |
| 2 | FIA F4 Esports Regional Tour - America | 606 | 3,587 | 6 | — |
| 3 | Production Car Challenge by Sim-Lab | 442 | 3,452 | 3 | — |
| 4 | Ferrari 296 Challenge | 395 | 1,533 | 1 | — |
| 5 | Motorsport UK FF 1600 Trophy by Thrustmaster | 204 | 1,013 | 2 | — |
| 6 | GT4 Challenge by Falken Tyre | 142 | 1,236 | 1 | — |
| 7 | iRacing Porsche Cup - Fixed by CONSPIT | 126 | 844 | 1 | — |
| 8 | Sports Car Challenge by Falken Tyre | 113 | 1,145 | 1 | — |
| 9 | iRacing Porsche Cup by CONSPIT | 87 | 564 | 1 | — |
| 10 | Advanced Mazda MX-5 Cup by Heusinkveld | 68 | 490 | 1 | — |
| 11 | LMP3 Trophy | 65 | 449 | 1 | — |
| 12 | 13th Week iRacing Porsche Cup | 44 | 395 | 1 | — |
| 13 | Spec Racer Ford Challenge | 40 | 227 | 2 | — |
| 14 | NASCAR Class C Series - Fixed | 40 | 396 | 1 | — |
| 15 | US Open Wheel D - USF 2000 Series - Fixed | 23 | 148 | 1 | — |
| 16 | Lotus 79 Grand Prix Series | 22 | 202 | 3 | — |
| 17 | NASCAR 1987 Legends Cup | 21 | 155 | 1 | — |
| 18 | Renault Clio Cup | 21 | 126 | 1 | — |
| 19 | Legends Road Cup by Go Motorsports Shop | 17 | 124 | 1 | — |
| 20 | IMSA Vintage Series | 16 | 240 | 3 | — |