By surface
| Surface | Thomaz Koch | Erik Van Dillen |
|---|---|---|
| Hard | 2 | 1 |
All meetings (4)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1977-03-21 | ATP | La Costa | Round of 64 | Hard | Erik Van Dillen | 3-6 | 1-6 | |||
| 1973-03-12 | ATP | Caracas | Round Robin | Hard | Thomaz Koch | 6-3 | 6-3 | |||
| 1972-02-14 | ATP | Los Angeles | Round of 32 | — | Thomaz Koch | 6-4 | 4-6 | 6-3 | ||
| 1972-02-01 | ATP | Omaha | Round of 16 | Hard | Thomaz Koch | 7-6 | 7-5 |