29 August 1988 at Sandford
| 500cc | RH Sidecars | 350cc |
| 1- Miles Evans | 1- M. Cookson & Peter Jones | 1- Dave Norris |
| 2- Andy Riley | 2- Shaun Ryan & Keith Wall | 2- Dave Mander |
| 3- Phil Alderman | 3- R. Philpotts & ANOther | 3- Gareth Roberts |
| 250cc | ||
| 1- Steve Deeran | ||
| 2- Mike Parton | ||
| 3- David Leighton |
3 July 1988 at Calverhall
| 500cc | RH Sidecars | 350cc |
| 1- Miles Evans | 1- Gary Jackson & Ian Harris | 1- Wayne Broadhurst |
| 2- Andy Riley | 2- Len Foreman & Ray Foreman | 2- Mark Wadsworth |
| 3- Graham Bell | 3- Craig Cheatham & Chris Knowles | 3- Andy Wickham |
| 250cc | ||
| 1- Mark Wadsworth | ||
| 2- Mark Leighton | ||
| 3- J. Cox |