John Van Lottum defeated Jan Siemerink 6-4 4-6 6-3 in the s Hertogenbosch round of 32 on grass. The result followed the form book — John Van Lottum came in leading the head-to-head 2–0, defending last year's round of 16. John Van Lottum extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-19 | Monte Carlo Masters | R64 | clay | John Van Lottum | 5-7 6-1 6-4 |
| 1998-05-25 | Roland Garros | R128 | clay | John Van Lottum | 6-7(5) 6-3 6-2 3-6 6-2 |
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 (109 vs 91). ATP, WTA & Challenger.