By surface
| Surface | Constantin Schmitz | Lukas Stierling |
|---|---|---|
| Hard | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1985-10-06 | WTA | Fed Cup WG ConR: HKG vs FRG | Round Robin | Hard | Petra Keppeler | 6-75 | 1-6 |
| Surface | Constantin Schmitz | Lukas Stierling |
|---|---|---|
| Hard | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1985-10-06 | WTA | Fed Cup WG ConR: HKG vs FRG | Round Robin | Hard | Petra Keppeler | 6-75 | 1-6 |