Head to head
1
Hard
0
2
Carpet
0
Thomaz Koch's wins on the left · Julian Ganzabal's on the right · bar lengths share one scale
All meetings (3)
| 1976 | Sao Paulo-2 | Carpet | R16 | Thomaz Koch | 6-2 7-5 |
| 1975 | Sao Paulo WCT | Carpet | R32 | Thomaz Koch | 6-0 6-7(5) 6-4 |
| 1974 | Paris | Hard | R16 | Thomaz Koch | 6-4 6-4 |
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.