1991 Lightweight Classic MGP
Course name: Mountain (post 1914)
Course length: 150.92 miles (4 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Jackson, Alan Bud | 1:38:03.00 | 92.34 | Suzuki |
| 2 | Wood, Barry | 1:38:57.00 | 91.5 | Suzuki |
| 3 | Hogg, Ian | 1:40:17.00 | 90.29 | Suzuki |
| 4 | Trotter, Les | 1:42:41.00 | 88.18 | Suzuki |
| 5 | Smith, David | 1:42:55.00 | 97.97 | Aermacchi |
| 6 | Hawkins, Rich | 1:44:19.00 | 86.8 | Ducati |
| 7 | Swallow, Pete | 1:47:27.00 | 84.26 | Ducati |
| 8 | Wilson, Peter | 1:48:14.00 | 83.65 | Honda |
| 9 | Watts, Nev | 1:48:21.00 | 83.57 | Honda |
| 10 | Parry-Jones, Lodwig | 1:49:58.00 | 82.33 | Ducati |
| 11 | Mason, Tony | 1:50:09.00 | 82.2 | NSU |
| 12 | Fitzsimmons, Richard | 1:50:37.00 | 81.85 | Suzuki |
| 13 | Cheers, Eric | 1:50:56.00 | 81.62 | Suzuki |
| 14 | Stewart, Ken | 1:51:07.00 | 81.48 | Ducati |
| 15 | Dock, Dave | 1:51:14.00 | 81.39 | Ducati |
| 16 | Watmough, Peter | 1:52:21.00 | 80.59 | Yamaha |
| 17 | McCartney, Andrew | 1:52:36.00 | 80.41 | Suzuki |
| 18 | Potter, Brian | 1:53:30.00 | 79.77 | Suzuki |
| 19 | Holliland, Derrick | 1:54:05.00 | 79.37 | Ducati |
| 20 | Maxwell, Joe | 1:57:13.00 | 77.24 | Ducati |
| 21 | Wheeler, Philippa | 1:59:32.00 | 75.74 | Ducati |
| 22 | Bool, Rich | 2:00:13.00 | 75.32 | Ducati |
| R | Dugdale, Alan | Yamaha | ||
| R | Thurlow, Dave | Yamaha | ||
| R | Burman, Alan | Ducati | ||
| R | Cain, Mike | Aermacchi | ||
| R | Robinson, Brian | Honda | ||
| R | Jackson, Bob | Suzuki | ||
| R | Simmons, Bob | Suzuki |