Head to head
1
Hard
0
1
Clay
0
Geoff Masters's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (2)
| 1977 | Johannesburg-1 | Hard | R32 | Geoff Masters | 4-6 6-2 6-3 |
| 1969 | Barcelona-1 | Clay | R16 | Geoff Masters | 6-1 6-1 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.