Sander Groen defeated Joost Winnink 2-6 6-2 6-1 in the Netherlands Masters 1 round of 16 on clay. The upset overturned the form book — Joost Winnink came in leading the head-to-head 1–0. Sander Groen claimed a first win over Joost Winnink in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-02-27 | Rotterdam | R32 | hard | Joost Winnink | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.