Head to head
1
Hard
0
1
Clay
0
Raul Ramirez's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (2)
| 1979 | Vienna | Hard | R64 | Raul Ramirez | 6-4 6-2 |
| 1974 | Roland Garros | Clay | R16 | Raul Ramirez | 6-3 6-1 4-6 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.