Yaoki Ishii defeated Claude Ngoran 6-4 6-4 in the Greece 1 Masters 1 qualifying round 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 3 | R16 | hard | Yaoki Ishii | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.