21 September 1980 at Uppington
| 500cc | RH Sidecars | 350cc |
| 1- Terry Owen | 1- Pete Brown & John Morron | 1- Mark Wadsworth |
| 2- Ted Marshall | 2- Len Foreman & Steve Burdett | 2- Alan Gardiner |
| 3- Alan Gardiner | 3- Gordon Matthews & Alan Harley | 3- Andy Challinor |
| 250cc | ||
| 1- Kevin Gwilliam | ||
| 2- Cameron Waugh | ||
| 3- Dave Shaw |