21 August 1988 at Honeybourne
| 500cc | 350cc | 250cc |
| 1- Marvyn Cox & Roland Tebbs | 1- Steve Carter & Steve Schofield | 1- Grant Faulkener & Dave Perry |
| 2- Simon Cross & Clayton Williams | 1- Marvyn Cox & K.Blundell | 2- Ian Rutter & Mark Wadsworth |
| 3- Andy Riley & Tim Fey | 3- John Boston & Nigel De’Ath | 3- Kevin Lancaster & Richie Knight |
| RH Sidecars | ||
| 1- Steve Dewison & Dave Ward / | ||
| Dave Manning & Peter Blanke | ||
| 2- Steve Smith & J. Mitton / | ||
| Richard Piggott & Tony Angelico | ||
| 3- Rob Wilson & Vince Jones / | ||
| Mick Cameron & Paul Randall |
17 July 1988 at Corporation Meadow
| Unlimited (Championship) | RH Sidecars (Carnival Kings Cup) | 500cc |
| 1- J. Bostin | 1- S. Smith & J. Mitton | 1- J. Bostin |
| 2- J. Walmsley | 2- G. Jackson & I. Harris | 2- N. Newman |
| 3- R. Tebbs | 3- K. Lapham & M. Lapham | 3- A. Wickham |
| 350cc | RH Sidecars | 250cc |
| 1- D. Perry | 1- S. Smith & J. Mitton | 1- Mark Wadsworth |
| 2- Mark Wadsworth | 2- G. Jackson & I. Harris | 2- J. Stott |
| 3- D. Mears | 3- K. Lapham & M. Lapham | 3- I. Rutter |
| Taylor Transport Shield (Round Two) | Mick Burton Trophy | Ken Lane ‘Go for it’ Trophy |
| 1- N. Newman | 1- M. Bowden | 1- T. Fey |
| 2- A. Wickham | 2- A. Howe | 2- N. Newman |
| 3- D. Andrews | 3- R. Radcliffe | 3- A. Riley |
11 June 1988 at Corporation Meadow
| 500cc | Unlimited | 350cc |
| 1- A. Riley | 1- A. Atkin | 1- A. Wickham |
| 2- P. Evans | 2- M. Turnbull | 2- J. Underwood |
| 3- E. Wright | 3- E. Wright | 3- D. Mander |
| 250cc | Taylor Transport Shield (Round One) | |
| 1- J. Stott | 1- M. Turnbull | |
| 2- D. Leighton | 2- A. Wickham | |
| 3- D. Andrews | 3- D. Andrews |