By surface
| Surface | Allan Stone | Hans Joachim Ploetz |
|---|---|---|
| Clay | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-08-13 | ATP | Hamburg | Round of 32 | Clay | Hans Joachim Ploetz | W/O | ||||
| Surface | Allan Stone | Hans Joachim Ploetz |
|---|---|---|
| Clay | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-08-13 | ATP | Hamburg | Round of 32 | Clay | Hans Joachim Ploetz | W/O | ||||