13 August 1950 at Temple Normanton, Chesterfield
| Unlimited | 350cc | 500cc |
| 1- Fred Wallis | 1- A.W. Roper | 1- Syd Mintey |
| 2- A.W. Roper | 2- Jack Robinson | 2- A.W. Roper |
| 3- Les Andrews | 3- H.Sykes | 3- M.Fowler |
14 May 1950 at Temple Normanton, Chesterfield
| Unlimited | 350cc | 500cc |
| 1- Jack Robinson | 1- Harry Plews | 1- A.W. Roper |
| 2- Len Tupling | 2- M. Hird | 2- M. Fowler |
| 3- Bill Alstead | 3- A.W. Roper | 3- Colin Sykes |
| Novices | ||
| 1- G. Eller |