By surface
| Surface | Bob Hewitt | Hans Joachim Ploetz |
|---|---|---|
| Clay | 1 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-05-12 | ATP | Brussels | Round of 32 | Clay | Bob Hewitt | 6-2 | 6-2 | |||
| 1968-01-02 | ATP | Port Elizabeth | Round of 16 | — | Bob Hewitt | 8-6 | 6-3 |