By surface
| Surface | Constantin Schmitz | Matthew Johnson |
|---|---|---|
| Hard | 1 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1988-01-11 | WTA | Australian Open | Round of 128 | Hard | Paulette Moreno | 3-6 | 2-6 | |||
| 1987-07-26 | WTA | Fed Cup WG ConR: NED vs HKG | Round Robin | — | Marianne Van Der Torre | 1-6 | 1-6 |