Tetsuya Chaen defeated Xin Yuan Yu 6-3 6-4 in the Japan F1 qualifying round on hard. The result followed the form book — Tetsuya Chaen came in leading the head-to-head 2–0. Tetsuya Chaen extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-10-23 | Japan F12 | SF | hard | Tetsuya Chaen | 6-2 5-7 6-3 |
| 2005-08-29 | Japan F9 | R32 | hard | Tetsuya Chaen | 6-4 2-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.