Wymondham 1990
Speedway on Grass
21 October 1990 at Wreningham
| 500cc | 500cc Sidecars | 350cc |
| 1- M. Loram | 1- D. Collin & R. Francis | 1- N. Scopes |
| 2- J. Doncaster | 2- A. Peck & S. Metson | 2- M. Jacobs |
| 3- A. Farmer | 3- C. Squirrell & A. Doughty | 3- L. Potter |
| 250cc | Zipper Trophy | Pre 75 2 Valve |
| 1- K. Lanchester | Not Known | 1- D. Hole |
| 2- S. Hines | 2- T. Davey | |
| 3- D. Camier | 3- T. Leadbitter |
