Head to head
1
Clay
2
Victor Pecci's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (3)
| 1979 | Bogota | Clay | QF | Victor Pecci | 7-5 6-1 |
| 1977 | Roland Garros | Clay | R128 | Thomaz Koch | 3-6 5-7 6-3 6-4 6-3 |
| 1976 | Buenos Aires | Clay | QF | Thomaz Koch | 3-6 6-3 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.