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 |
|---|---|---|---|---|---|
| Peter Ray | 3 September 1968 | Ballaugh Bridge | 1968 Manx Grand Prix | Lightweight | Aermacchi |
| Roger Perrier | 3 September 1968 | Kirk Michael | 1968 Manx Grand Prix | Junior | Norton |
| Arthur Lavington | 6 June 1969 | Alpine Cottage | 1969 Isle of Man TT | Practice | 350cc Velocette |
| Gordon V.Taylor | 25 August 1969 | Alpine Cottage | 1969 Manx Grand Prix | Practice | 325cc Kawasaki |
| Michael L. Bennett | 26 August 1969 | Glen Helen | 1969 Manx Grand Prix | Practice | 500cc Norton |
| Iain Sidey | 28 August 1969 | Quarterbridge | 1969 Manx Grand Prix | Practice | Norton |
| Les Iles | 1 June 1970 | Kate`s Cottage | 1970 Isle of Man TT | Practice | 125cc Bultaco |
| Michael Collins | 3 June 1970 | Verandah | 1970 Isle of Man TT | Practice | 496cc Seeley |