By surface
| Surface | Thomaz Koch | Luis Alberto Ayala |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-07-07 | ATP | Washington | Round of 32 | Clay | Thomaz Koch | 8-6 | 7-5 |
| Surface | Thomaz Koch | Luis Alberto Ayala |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-07-07 | ATP | Washington | Round of 32 | Clay | Thomaz Koch | 8-6 | 7-5 |