| Year | Race | No | Team | Constructor | Model | CN | Engine | Spec | Gr | Ps | Laps | Led | Retired | Pts | Formula | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | 1968 | TLW | 29 | D. MacDonald | Brabham | BT10 | IC-6-64 | Ford | Twin cam L4 1.5 | 17 | 12 | 37 | 0 | TAS | ||
| 3 | 1968 | NZE | 29 | D. MacDonald | Brabham | BT10 | IC-6-64 | Ford | Twin cam L4 1.5 | 16 | 11 | 49 | 0 | TAS | ||
| 2 | 1967 | TLW | 29 | D. MacDonald | Brabham | BT10 | IC-6-64 | Ford | Twin cam L4 1.5 | 16 | DNF | 8 | Overheating | 0 | TAS | |
| 1 | 1967 | NZE | 29 | D. MacDonald | Brabham | BT10 | IC-6-64 | Ford | Twin cam L4 1.5 | 15 | DNF | 45 | DNF | 0 | TAS |
