John Van Lottum defeated Nicolas Kiefer 7-5 6-4 in the s Hertogenbosch round of 32 on grass. The upset overturned the form book — Nicolas Kiefer came in leading the head-to-head 1–0. John Van Lottum claimed a first win over Nicolas Kiefer in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-16 | Washington | R16 | hard | Nicolas Kiefer | 7-5 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 (145 vs 200). ATP, WTA & Challenger.