Start to finish win gives McRae fourth Wigram title
Graham McRae won his fourth Lady Wigram Trophy race leading from start to finish at an average 115.452 mph in his McRae GM2, setting fastest lap at 117 mph. John McCormack (Elfin MR6) took second in a last-lap pass of Johnnie Walker, Max Stewart was fourth and Graeme Lawrence fifth a lap down. Warwick Brown retired after four laps with a blown head gasket when second, and Chris Amon (Talon MR1) retired on lap 19 with a cracked cylinder head.
Lady Wigram Trophy (44 laps)
| 1 | Graham McRae | McRae GM2 | |
| 2 | John McCormack (Australia) | Elfin MR6 | |
| 3 | Johnnie Walker (Australia) | Lola T332 | |
| 4 | Max Stewart (Australia) | Lola T400 | |
| 5 | Graeme Lawrence (Hamilton) | Lola T332 | 1 lap behind |
| 6 | David Oxton (Auckland) | Lola T330 | 43 laps |
| 7 | Jim Murdoch (Drummond) | Begg 018 | 43 laps |
| DNF | Warwick Brown (Australia) | Lola T332 | |
| DNF | Chris Amon (New Zealand) | Talon MR1 | |
| DNF | Kevin Bartlett (Australia) | Lola T400 |
Lap times
- Graham McRae (McRae GM2): 117 mph fastest race lap
Facts
- McRae's 1975 Wigram win gave him nine Stuyvesant points with five races still to run; he had been in motor racing's wilderness for more than a year.
- Lawrence's two points put him at the top of the series with Warwick Brown.
- The 1975 Lady Wigram Trophy was a 44-lap race over the 2.2-mile aerodrome circuit with a 14-car field and a rolling start.
- Murdoch's Begg 018 lacked power on the fast Wigram circuit in 1975, finishing seventh.
