12 April 1971 at Birdlip
| 500cc (Championship) | RH Sidecars (Championship) | 350cc (Championship) |
| 1- Terry Owen | 1- ANOther | 1- Terry Owen |
| 2- Tig Perry | 2- A. Lewis & L. Allarton | 2- Selwyn Perry |
| 3- Adrian Moss | 3- Eifion Jones & Ken Jones | 3- John Busband |
| RH Sidecars (Invitation) | 250cc (Championship) | RH Sidecars (1) |
| 1- A. Lewis & L. Allarton | 1- Cyril Jones | 1- ANOther |
| 2- ANOther | 2- John Busband | 2- A. Lewis & L. Allarton |
| 3- Stan Bache & Phil Bickley | 2- Tig Perry | 3- Eifion Jones & Ken Jones |
| Unlimited | Eight Fastest | |
| 1- Terry Owen | 1- Terry Owen | |
| 2- Rich Perkins | 2- Tig Perry | |
| 3- Grayham Fletcher | 3- Adrian Moss |