Cecil Mamiit defeated Zak Blanchard 6-3 7-5 in the USA F5 round of 64 on hard. The result followed the form book — Cecil Mamiit came in leading the head-to-head 1–0. Cecil Mamiit extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-22 | USA F6 | R32 | hard | Cecil Mamiit | 5-7 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.