John Van Lottum defeated Martin Damm Sr 7-5 7-6 in the s Hertogenbosch round of 32 on grass. The upset overturned the form book — Martin Damm Sr came in leading the head-to-head 1–0, defending last year's semi-final. John Van Lottum claimed a first win over Martin Damm Sr in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-15 | s Hertogenbosch | R16 | grass | Martin Damm Sr | 6-4 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (54 vs 10). ATP, WTA & Challenger.