By surface
| Surface | Thomaz Koch | Ramiro Benavides |
|---|---|---|
| Clay | 2 | 0 |
All meetings (4)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-11-22 | ATP | Buenos Aires | Round of 32 | Clay | Thomaz Koch | 6-7 | 6-2 | 6-1 | ||
| 1975-08-11 | ATP | Toronto | Round of 32 | Clay | Thomaz Koch | 6-2 | 6-3 | |||
| 1974-12-13 | ATP | Davis Cup SAM PR: BRA vs BOL | Round Robin | — | Thomaz Koch | 6-2 | 6-2 | 6-1 | ||
| 1971-04-04 | ATP | Davis Cup SAM QF: BRA vs BOL | Round Robin | — | Thomaz Koch | 6-0 | 6-1 | 6-1 |