29 July 1973 at Chilmington Green
| 340cc – 650cc | RH Sidecars (1) | 250cc |
| 1- R. Duke | 1- D. Glaysher & M. Glaysher | 1- D. Brown |
| 2- J. Britcher | 2- M. Cox & T. Beale | 2- M. Andrews |
| 3- S. Luck | 3- A. Carter & J. Tanner | 3- C. Mackett |
| 400cc – 650cc | RH Sidecars (2) | 240cc – 350cc |
| Not Known | Not Known | Not Known |
| The Jock Cameron Memorial | ||
| Not Known |
3 June 1973 at Chilmington Green
| 400cc – 650cc | RH Sidecars (1) | 240cc – 350cc |
| 1- J. Britcher | 1- A. Pritchard & E. Wilkings | 1- Roland Duke |
| 2- Roland Duke | 2- R. Hopkins & D. Chapman | 2- John Britcher |
| 3- L. Newson | 3- L. Diggins & J. Russell | 3- A. Downey |
| 250cc | RH Sidecars (2) | The Jock Cameron Memorial Trophy |
| 1- C. Packman | Not Known | 1- S. Jarvis |
| 2- P. Bonugli | 2- J. Rowney | |
| 3- M. Baverstock | 340cc – 650cc | 3- M. Arnold |
| Not Known |
15 April 1973 at Chilmington Green
| 240cc – 350cc | RH Sidecars (1) | 250cc |
| 1- A. Downey | 1- T. Charles & M. Jones | 1- J. Rowney |
| 2- Graham Hurry | 2- Dave Manning & D. Brewster | 2- C. Packman |
| 3- John Britcher | 3- D. Aungier & J. Pout | 3- R. Church |
| 340cc – 650cc | RH Sidecars (2) | 400cc – 650cc |
| Not Known | Not Known | Not Known |
| The Jock Cameron Memorial | ||
| Not Known |