By surface
| Surface | Thomaz Koch | Armando Cornejo |
|---|---|---|
| Grass | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1974-08-28 | ATP | US Open | Round of 128 | Grass | Thomaz Koch | 7-5 | 6-1 | 6-3 | ||
| 1969-08-27 | ATP | US Open | Round of 128 | Grass | Thomaz Koch | 6-0 | 6-4 | 6-2 |