By surface
| Surface | Terry Ryan | Colin Diederichs |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-04-06 | ATP | Durban | Round of 32 | Hard | Terry Ryan | 10-8 | 6-1 |
| Surface | Terry Ryan | Colin Diederichs |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-04-06 | ATP | Durban | Round of 32 | Hard | Terry Ryan | 10-8 | 6-1 |