1970 Production 250 TT
Course name: Mountain (post 1914)
Course length: 188.75 miles (5 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Mortimer, Chas | 2:13:23.40 | 84.87 | Ducati |
| 2 | Williams, John G. | 2:13:29.00 | 84.8 | Honda |
| 3 | Woods, Stan | 2:14:40.60 | 84.06 | Suzuki |
| 4 | Hunter, Graham | 2:14:52.40 | 83.94 | Ducati |
| 5 | Boughey, Roy | 2:17:37.60 | 82.26 | Honda |
| 6 | Ashcroft, Raymond | 2:27:48.80 | 76.59 | Honda |
| 7 | Loughridge, Tom | 2:28:19.00 | 76.32 | Suzuki |
| 8 | Luton, Cyril | 2:36:08.00 | 72.5 | Ducati |
| R | Kirwan, Mal | Bultaco | ||
| R | Corbett, Roger | Cotton | ||
| R | Thompsett, Clive | Ducati | ||
| R | Curry, Jim | Honda | ||
| R | Porter, Lindsay | Suzuki | ||
| R | Shimmin, Danny | Suzuki | ||
| R | Robertson, William | Suzuki |