By surface
| Surface | Constantin Frantzen | Sorin Rus |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-02-11 | WTA | Aurora | Quarterfinal | Hard | Manon Bollegraf | 6-7 | 5-7 |
| Surface | Constantin Frantzen | Sorin Rus |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-02-11 | WTA | Aurora | Quarterfinal | Hard | Manon Bollegraf | 6-7 | 5-7 |