List of Snaefell Mountain Course fatal accidents List of fatal accidents involving competitors List of fatal accidents involving competitors

| Rider | Date_ | Place | Race | Event | Machine |
|---|---|---|---|---|---|
| Gilberto Parlotti | 9 June 1972 | Verandah | 1972 Isle of Man TT | Ultra-Lightweight TT | 125cc Morbidelli |
| Chris M. Clarke | 28 August 1972 | Glen Helen | 1972 Manx Grand Prix | Practice | 250cc Yamaha |
| John L. Clarke | 2 June 1973 | Union Mills | 1973 Isle of Man TT | 250cc Production TT | Suzuki T20 Super Six |
| Eric R. Piner | 5 September 1973 | Kirk Michael | 1973 Manx Grand Prix | Lightweight | 250cc Yamaha |
| Peter L. Hardy | 27 May 1974 | Laurel Bank | 1974 Isle of Man TT | Practice– Sidecar | 750cc HTS– Imp |
| David J. Nixon | 1 June 1974 | Glen Helen | 1974 Isle of Man TT | 1000cc Production TT | 741cc Triumph Trident |