John Van Lottum defeated Wayne Black 6-3 6-2 in the Cincinnati Masters round of 64 on hard. The upset overturned the form book — Wayne Black came in defending last year's round of 64. John Van Lottum extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-12 | Singapore | R32 | hard | John Van Lottum | 7-5 6-2 |
| 1998-07-20 | Washington | R64 | hard | Wayne Black | 6-3 6-3 |
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 59). ATP, WTA & Challenger.