1968 Production 500 TT
Course name: Mountain (post 1914)
Course length: 113.19 miles (3 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Knight, Ray | 1:15:23.60 | 90.09 | Triumph |
| 2 | Blanchard, John | 1:16:41.20 | 88.58 | Velocette |
| 3 | Nixon, Dave | 1:16:44.40 | 88.52 | Triumph |
| 4 | Kelly, Thomas Neil | 1:18:33.00 | 86.47 | Velocette |
| 5 | Robinson, Graham | 1:19:24.20 | 85.54 | Honda |
| 6 | Barnacle, George | 1:20:38.60 | 84.23 | Triumph |
| 7 | Evans, Hugh | 1:23:08.00 | 81.7 | BSA |
| 8 | Mortimer, Chas | 1:27:07.60 | 77.96 | Ducati |
| 9 | Walker, Tom | 1:30:15.00 | 75.26 | Triumph |
| R | Vincent, Chris | Suzuki | ||
| R | Baylie, Ron | Triumph | ||
| R | Mackay, Reay | Velocette |