Bong Soo Kim defeated Tetsuya Chaen 3-6 6-2 6-3 in the Japan Masters 2 round of 16 on hard. The upset overturned the form book — Tetsuya Chaen came in leading the head-to-head 1–0, but Bong Soo Kim had been the form player, winning 3 of their last 7 on hard. Bong Soo Kim claimed a first win over Tetsuya Chaen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-06-04 | Finland Masters 4 | R16 | clay | Tetsuya Chaen | 7-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.