29 April 1990 at Westhide
| National | 500cc Sidecars | Restricted |
| 1- Keith Millard | 1- Kevin Leide & Alan Pithouse | 1- Wayne Elliott |
| 2- Phil Ashcroft | 2- Terry Herbert & Steve Herbert | 2- Ed Wright |
| 3- John Walmsley | 3- Brian Canning & Colin Lewis | 3- Simon Phillips |
| 350cc | 250cc | |
| 1- Wayne Broadhurst | 1- Ian Rutter | |
| 2- Andy Wickham | 2- Mark Wadsworth | |
| 3- Ian Rutter | 3- Jason Stott |