Nicolas Kiefer defeated Jan Kroslak 6-4 6-3 in the Washington quarter-final on hard. The result followed the form book — Nicolas Kiefer came in leading the head-to-head 2–0. Nicolas Kiefer extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-05 | Hong Kong | R32 | hard | Nicolas Kiefer | 6-1 6-0 |
| 1998-11-02 | Paris Masters | R64 | hard | Nicolas Kiefer | 7-5 6-1 |
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 (200 vs 56). ATP, WTA & Challenger.