John Van Lottum defeated Jan Siemerink 6-7 6-3 6-2 3-6 6-2 in the Roland Garros round of 128 on clay. The result followed the form book — John Van Lottum came in leading the head-to-head 2–0. John Van Lottum extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-14 | s Hertogenbosch | R32 | grass | John Van Lottum | 6-4 4-6 6-3 |
| 1999-04-19 | Monte Carlo Masters | R64 | clay | John Van Lottum | 5-7 6-1 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 (145 vs 153). ATP, WTA & Challenger.