29 April 1973 at Smarden
| 240cc – 650cc | RH Sidecars (1) | 300cc – 650cc |
| 1- Graham Hurry | 1- G. Smith & A. Rouse | 1- Graham Hurry |
| 2- C. Stewart | 2- R. Hopkins & D. Chapman | 2- C. Stewart |
| 3- A. Downey | 3- M. Palmer & J. Bainbridge | 3- A. Kite |
| 240cc – 350cc | LH Sidecars (1) | 250cc |
| 1- Graham Hurry | 1- S. Ford-Dunn & Brian Cree | 1- P. Bonugli |
| 2- A. Downey | 2- J. Penfold & M. Chester | 2- J. Yearley |
| 3- Barry Hazelton | 3- C. Ormerod & D. Simmonds | 3- J. Rowney |
| LH Sidecars (2) | RH Sidecars (2) | |
| Not Known | Not Known |