By surface
| Surface | Thomaz Koch | Mike Belkin |
|---|---|---|
| Clay | 1 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-07-18 | ATP | Davis Cup AME F: BRA vs CAN | Round Robin | Clay | Mike Belkin | 8-6 | 6-8 | 3-6 | 4-6 | |
| 1969-07-07 | ATP | Washington | Semifinal | Clay | Thomaz Koch | 6-2 | 6-3 |