Yaoki Ishii defeated Jan Krejci 7-6 6-3 in the Greece 1 Masters 1 round of 16 on hard. The result followed the form book — Yaoki Ishii came in leading the head-to-head 1–0. Yaoki Ishii extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-02 | Greece 1 Masters 2 | SF | hard | Yaoki Ishii | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.