Boston 1958
Club Meeting
7 September 1958 at Witham Marsh Farm
| 500cc | RH Sidecars | 350cc |
| 1- Arthur Stuffins | 1- John Neath | 1- Arthur Stuffins |
| 2- Fred Woodward | 2- Harold Hill | 2- Pete Denny |
| 3- Paul Cross | 3- Roy Cuncliffe | 3- Dinger Bell |
| 250cc | ||
| 1- Arthur Stuffins | ||
| 2- Ken Greer | ||
| 3- Des Heckle |
Club Meeting
27 July 1958 at Witham Marsh Farm
| Unlimited | RH Sidecars (Handicap) | 500cc |
| 1- Bill Bridgett | 1- Keith Blaynee | 1- Dennys Goodacre |
| 2- Harold Sandsby | 2- Doug Wright | 2- Arthur Stuffins |
| 3- Dennys Goodacre | 3- Reg Chney | 3- Arthur Sell |
| 350cc | RH Sidecars (Scratch) | 250cc |
| 1- Dennys Goodacre | 1- Keith Blaynee | 1- Arthur Stuggins |
| 2- Harold Sandsby | 2- Harold Hill | 2- Jackie Sewell |
| 3- Dave Nourish | 3- Ken Fisher | 3- Dave Nourish |
