By surface
| Surface | Heinz Gunthardt | Colin Dowdeswell |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-09-24 | ATP | Davis Cup EUR PR: SUI vs RHO | Round Robin | — | Colin Dowdeswell | 6-0 | 7-9 | 2-6 | 3-6 |
| Surface | Heinz Gunthardt | Colin Dowdeswell |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-09-24 | ATP | Davis Cup EUR PR: SUI vs RHO | Round Robin | — | Colin Dowdeswell | 6-0 | 7-9 | 2-6 | 3-6 |