By surface
| Surface | Ruben Konings | Joao Marques |
|---|---|---|
| Grass | 0 | 3 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1975-06-23 | WTA | Wimbledon | Round of 16 | Grass | Margaret Court | 2-6 | 2-6 | |||
| 1973-06-25 | WTA | Wimbledon | Round of 16 | Grass | Margaret Court | 1-6 | 4-6 | |||
| 1973-01-02 | WTA | Sydney | Quarterfinal | Grass | Margaret Court | 2-6 | 2-6 |