By surface
| Surface | Thomaz Koch | Richard Gonzalez |
|---|---|---|
| Carpet | 0 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1972-02-14 | ATP | Los Angeles | Quarterfinal | — | Thomaz Koch | 6-1 | 6-4 | |||
| 1969-02-05 | ATP | Philadelphia WCT | Round of 16 | Carpet | Richard Gonzalez | 3-6 | 5-7 |