McRae beats class field into the ground
Graham McRae won the 19th International Lady Wigram Trophy at a record average of 114.277 mph, 27.8sec ahead of 22-year-old Sydney driver Warwick Brown (Lola T300), with Steve Thompson (Chevron B24) third; only these three ran the full 47 laps. Max Stewart led for 35 laps before a crankshaft balance weight holed his sump. The win gave McRae 21 Tasman points, 11 clear of Brown.
Lady Wigram Trophy
| 1 | Graham McRae | McRae GM1 | 114.277 mph average |
| 2 | Warwick Brown (Sydney) | Lola T300 | 27.8sec behind |
| 3 | Steve Thompson (England) | Chevron B24 | 33.5sec behind Brown |
| 4 | Frank Matich (Australia) | Repco Matich A50 | 46 laps |
| 5 | David Oxton (Auckland) | Begg FM5 | |
| 6 | Dexter Dunlop (Wellington) | McRae GM1 | a further lap back |
| DNF | Max Stewart (Australia) | Lola T330 |
Lap times
- Graham McRae (McRae GM1): 114.277 mph other
Facts
- McRae's 1973 Lady Wigram Trophy win was at a record race average of 114.277 mph; only three cars finished all 47 laps.
- McRae changed the cylinder heads on his car the night before and tested the car early on race morning.
- McRae's tyres started to melt in the heat and his steering went slack late in the race.
- After Wigram 1973 the Tasman points were McRae 21, Brown 10, McCormack 9, Matich 9, Thompson 8, Rollinson 6.
- McRae was fastest qualifier on the Friday for the 1973 trophy race.
