| Year | Tournament | Result | Player | Age | Nation |
|---|---|---|---|---|---|
| 1969 | Wimbledon | R64 | Betty Stöve | 24 | Netherlands |
| 1969 | Wimbledon | R64 | Marijke Schaar | 24 | Netherlands |
| 1969 | Wimbledon | R128 | Judith Salomé | 20 | Netherlands |
| 1969 | French Open | S | Tom Okker | 25 | Netherlands |
| 1969 | French Open | R64 | Judith Salomé | 20 | Netherlands |
| 1969 | Australian Open | R64 | Tom Okker | 24 | Netherlands |
| 1968 | US Open | F | Tom Okker | 24 | Netherlands |
| 1968 | Wimbledon | Q | Tom Okker | 24 | Netherlands |
| 1968 | Wimbledon | R32 | Ada Bakker | 20 | Netherlands |
| 1968 | Wimbledon | R32 | Marijke Schaar | 23 | Netherlands |
| 1968 | Wimbledon | R64 | Astrid Suurbeek | 21 | Netherlands |
| 1968 | Wimbledon | R128 | Lidy Jansen | n/a | Netherlands |
Open Era Grand Slam Tennis
This site is dedicated to Grand Slam tennis stats from the Open Era – for those of us who love the numbers behind the game. Pick any group of players and see how they rank. Compare, filter, and view the same data from different angles – whether you want to explore dominance, consistency, or longevity. In short: It’s all about turning tennis history into insights you can actually play with.