Chu Huan Yi defeated Masato Hatanaka 6-3 6-2 in the Japan F2 round of 16 on hard. The result followed the form book — Chu Huan Yi came in leading the head-to-head 4–0. Chu Huan Yi extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-22 | Japan F6 | R16 | carpet | Chu Huan Yi | 6-3 6-4 |
| 2009-06-15 | Japan F5 | R16 | carpet | Chu Huan Yi | 6-1 7-6(1) |
| 2009-06-08 | Japan F4 | R16 | clay | Chu Huan Yi | 7-5 6-3 |
| 2008-06-09 | Japan F4 | R16 | clay | Chu Huan Yi | 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.