1966 50 TT
Course name: Mountain (post 1914)
Course length: 113.19 miles (3 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Bryans, Ralph | 1:19:17.20 | 85.66 | Honda |
| 2 | Taveri, Luigi | 1:20:08.40 | 84.74 | Honda |
| 3 | Anderson, Hugh | 1:21:41.00 | 83.14 | Suzuki |
| 4 | Degner, Ernst | 1:22:52.20 | 81.96 | Suzuki |
| 5 | Gleed, Brian | 1:39:31.60 | 68.25 | Honda |
| 6 | Simmonds, Dave | 1:41:50.00 | 67.7 | Honda |
| 7 | Griffiths, Les | 1:44:28.60 | 65.02 | Honda |
| 8 | Pink, Jim | 1:44:29.00 | 65.01 | Honda |
| 9 | Allen, Martin | 1:45:20.40 | 64.48 | Honda |
| 10 | Kettle, Brian | 1:45:33.60 | 64.35 | Honda |
| 11 | Robb, Tommy | 1:46:59.20 | 63.49 | Suzuki |
| 12 | Robinson, Allan | 1:48:20.40 | 62.7 | Honda |
| 13 | Lawley, Stan | 1:51:58.20 | 60.66 | Honda |
| R | Lawley, John | Honda | ||
| R | Katayama, Yoshimi | Suzuki | ||
| R | Smith, Barry | Suzuki | ||
| R | Vincent, Chris | Suzuki | ||
| R | Anscheidt, Hans-Georg | Suzuki |