By surface
| Surface | Thomaz Koch | Chum Steele Iii |
|---|---|---|
| Grass | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-08-16 | ATP | Boston | Round of 128 | Grass | Chum Steele Iii | 4-6 | 3-6 |
| Surface | Thomaz Koch | Chum Steele Iii |
|---|---|---|
| Grass | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-08-16 | ATP | Boston | Round of 128 | Grass | Chum Steele Iii | 4-6 | 3-6 |