Wei Ju Chen defeated Tetsuya Chaen 5-7 6-3 6-0 in the Japan F5 round of 32 on hard. The upset overturned the form book — Tetsuya Chaen came in leading the head-to-head 2–0, but Wei Ju Chen had been the form player, winning 3 of their last 7 on hard. Wei Ju Chen claimed a first win over Tetsuya Chaen in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-11-06 | Japan Masters 3 | R16 | hard | Tetsuya Chaen | 6-3 6-2 |
| 1993-08-09 | Chinese Taipei Masters 3 | R32 | hard | Tetsuya Chaen | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.