Head to head
2
Clay
0
3
Carpet
0
Thomaz Koch's wins on the left · Joaquin Loyo-Mayo's on the right · bar lengths share one scale
All meetings (5)
| 1971 | Davis Cup AME F: MEX vs BRA | Clay | RR | Thomaz Koch | 7-5 4-6 7-9 6-4 9-7 |
| 1971 | Hampton | Carpet | R32 | Thomaz Koch | 6-4 7-5 |
| 1971 | Macon | Carpet | R32 | Thomaz Koch | 6-4 6-3 |
| 1971 | Salisbury | Carpet | R16 | Thomaz Koch | 6-1 6-2 |
| 1969 | Davis Cup AME F: BRA vs MEX | Clay | RR | Thomaz Koch | 7-5 6-1 6-3 |
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.