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| Name | Date of accident | Discipline | Car | Championship | Circuit | Event | Session | Cause | Source |
|---|---|---|---|---|---|---|---|---|---|
| O'Connor, PatPat O'Connor (USA) | 01958-01-011958 | ] | ] | 1958 Indianapolis 500 | Race | ||||
| O'dor, KiethKieth O'dor (GBR) | 01995-01-011995 | Touring car | Nissan Primera | Super Tourenwagen Cup | AVUS | Race | |||
| Ogawa, HitoshiHitoshi Ogawa (JPN) | 01992-01-011992 | Japanese F3000 | Suzuka Circuit | Race | |||||
| Oreiller, HenriHenri Oreiller (FRA) | 01962-01-011962 | Ferrari 250 GTO | World Sportscar Championship | Autodrome de Montlhéry | 1000km de Paris | Race | |||
| Orr, RodneyRodney Orr (USA) | 01994-01-011994 | Stock car | Winston Cup Series | Daytona International Speedway | 1994 Daytona 500 | Practice |
Read more about this topic: Driver Deaths In Motorsport