Martin Verkerk defeated Gordon Bergraaf 6-1 6-2 in the Netherlands Masters 4 round of 32 on clay. The upset overturned the form book — Gordon Bergraaf came in leading the head-to-head 1–0, but Martin Verkerk had been the form player, winning 5 of their last 7 on clay. Martin Verkerk claimed a first win over Gordon Bergraaf in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-15 | Netherlands Masters 2 | R16 | clay | Gordon Bergraaf | 3-6 7-6 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.