Head to head
3
Grass
0
Geoff Masters's wins on the left · Allan McDonald's on the right · bar lengths share one scale
All meetings (3)
| 1970 | Brisbane | Grass | R16 | Geoff Masters | 6-3 6-2 |
| 1969 | Brisbane | Grass | R32 | Geoff Masters | 3-6 18-16 6-3 |
| 1968 | Adelaide | Grass | R64 | Geoff Masters | 6-2 12-10 7-5 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.