By surface
| Surface | Nicholas Kalogeropoulos | Sidney Gordon |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1971-04-05 | ATP | Johannesburg | Round of 64 | Hard | Nicholas Kalogeropoulos | 7-6 | 5-7 | 6-2 | 7-5 |
| Surface | Nicholas Kalogeropoulos | Sidney Gordon |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1971-04-05 | ATP | Johannesburg | Round of 64 | Hard | Nicholas Kalogeropoulos | 7-6 | 5-7 | 6-2 | 7-5 |