1989 Lightweight Classic MGP
Course name: Mountain (post 1914)
Course length: 150.92 miles (4 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Smith, David | 1:44:00.00 | 87.06 | Aermacchi |
| 2 | Swallow, Pete | 1:47:42.00 | 84.07 | Ducati |
| 3 | Hawkins, Rich | 1:47:59.00 | 83.85 | Ducati |
| 4 | Watts, Nev | 1:48:15.00 | 83.64 | Honda |
| 5 | Hadwin, Geoff | 1:50:09.00 | 82.2 | Suzuki |
| 6 | Fitzsimmons, Richard | 1:50:18.00 | 82.08 | Suzuki |
| 7 | Dock, Dave | 1:50:58.00 | 81.59 | Ducati |
| 8 | Stratford Parsons, Martin | 1:51:47.00 | 80.99 | Ducati |
| 9 | Wilson, Peter | 1:52:43.00 | 80.33 | Honda |
| 10 | Wheeler, Arthur | 1:53:41.00 | 79.64 | Moto Guzzi |
| 11 | Donovan, Brian | 1:55:07.00 | 78.66 | Honda |
| 12 | Pearson, Gav | 1:57:43.00 | 76.92 | Ducati |
| 13 | Grew, John | 1:59:22.00 | 75.85 | BSA |
| 14 | Tams, Guy | 2:03:51.00 | 73.1 | Ducati |
| 15 | Bool, Rich | 2:04:36.00 | 72.66 | Ducati |
| R | Babb, Gerry | Honda | ||
| R | Dugdale, Alan | Aermacchi | ||
| R | Hart, Hans | Ducati | ||
| R | Mason, Tony | Ariel | ||
| R | Sells, Dave | Bultaco | ||
| R | Stewart, Ken | Ducati | ||
| R | Trout, Bernard | Ducati | ||
| R | Williamson, Norman | Aermacchi | ||
| R | Cain, Mike | Suzuki | ||
| R | Robertson, William | Suzuki | ||
| R | Jackson, Bob | Suzuki | ||
| R | Simmons, Bob | Suzuki |