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 |
|---|---|---|---|---|---|
| Eugene P. McDonnell | 4 June 1986 | Ballaugh Bridge | 1986 Isle of Man TT | Lightweight TT | 250cc EMC |
| Andy Cooper | 6 June 1986 | Ballig | 1986 Isle of Man TT | Senior TT | 750cc Suzuki |
| Nigel Hale | 27 August 1986 | Sarah`s Cottage | 1985 Manx Grand Prix | Practice | 250cc EMC |
| Kenneth P. Norton | 25 August 1987 | 33rd Milestone | 1987 Manx Grand Prix | Practice | 350cc Yamaha |
| Martin Jennings | 1 September 1987 | Rhencullen | 1987 Manx Grand Prix | Practice | 350cc Yamaha |
| Ricky Dumble | 2 June 1988 | Quarterbridge Road | 1988 Isle of Man TT | Practice | 750cc Yamaha |
| Kenneth N. Harmer | 3 June 1988 | Water Works Corner | 1988 Isle of Man TT | Practice | 750cc Honda RC 30 |