1966 Ultra Lightweight TT
Course name: Mountain (post 1914)
Course length: 113.19 miles (3 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Ivy, Bill | 1:09:32.80 | 97.66 | Yamaha |
| 2 | Read, Phil | 1:10:03.20 | 96.96 | Yamaha |
| 3 | Anderson, Hugh | 1:10:09.20 | 96.82 | Suzuki |
| 4 | Duff, Mike | 1:11:11.20 | 95.42 | Yamaha |
| 5 | Perris, Frank | 1:11:24.00 | 95.13 | Suzuki |
| 6 | Hailwood, Mike | 1:11:26.60 | 95.07 | Honda |
| 7 | Bryans, Ralph | 1:16:53.60 | 88.33 | Honda |
| 8 | Taveri, Luigi | 1:18:16.80 | 86.77 | Honda |
| 9 | Curry, Jim | 1:19:57.80 | 84.95 | Honda |
| 10 | Cass, Kevin | 1:20:03.40 | 84.85 | Bultaco |
| 11 | Simmonds, Dave | 1:20:07.60 | 84.77 | Tohatsu |
| 12 | Carruthers, Kel | 1:21:21.00 | 83.49 | Honda |
| 13 | Dickinson, Gary | 1:21:51.60 | 82.98 | Honda |
| 14 | Stevens, Fred | 1:22:37.60 | 82.21 | Honda |
| 15 | Richards, Brian | 1:22:59.40 | 81.84 | Honda |
| 16 | Plenderleith, George | 1:23:01.80 | 81.81 | Honda |
| 17 | Murray, Steve | 1:23:40.40 | 81.18 | Honda |
| 18 | Smith, Bill | 1:24:32.80 | 80.34 | Honda |
| 19 | Grotefeld, Terry | 1:25:22.20 | 79.57 | Honda |
| 20 | Iles, Les | 1:25:30.80 | 79.44 | Bultaco |
| 21 | Geeson, Lou | 1:26:11.00 | 78.81 | Honda |
| 22 | Francis, R.A. | 1:26:53.60 | 78.17 | Honda |
| 23 | Gibson, Peter | 1:26:57.80 | 78.11 | Bultaco |
| 24 | Wilson, Clive | 1:28:59.80 | 77.19 | Honda |
| 25 | Kiddie, John | 1:28:41.40 | 76.59 | Honda |
| 26 | Hudson, John | 1:30:34.00 | 75 | Honda |
| 27 | Walsh, Pat | 1:31:12.00 | 74.48 | MV |
| 28 | Campbell, Alec | 1:31:20.00 | 74.37 | Bultaco |
| 29 | Hardy, Rex | 1:31:26.40 | 74.29 | Bultaco |
| 30 | Kaye, Brian | 1:33:48.00 | 72.41 | Honda |
| 31 | Launchbury, Fred | 1:34:05.60 | 72.19 | BSA |
| 32 | Trollope, Dennis | 1:39:45.60 | 68.09 | Honda |
| 33 | Smith, B.E. | 68.09 | Honda | |
| 34 | Dickinson, Baz | Bultaco | ||
| R | Gregory, Chris | BSA | ||
| R | Smart, Fred | BSA | ||
| R | Boughey, Roy | Honda | ||
| R | Chapman, Joe | Honda | ||
| R | Findlay, Jack | Honda | ||
| R | Gleed, Brian | Honda | ||
| R | Gustafsson, Bo | Honda | ||
| R | Horsham, Phil | Honda | ||
| R | Udall, Robin | Merlin | ||
| R | Robinson, Robbo | Mondial | ||
| R | Mates, Charlie | Tohatsu | ||
| R | Pink, Jim | Tohatsu | ||
| R | Simmonds, Mike | Tohatsu | ||
| R | Potter, Mick | Montesa | ||
| R | Robb, Tommy | Bultaco | ||
| R | Pepper, John | Tohatsu |