Tetsuya Chaen defeated Michihisa Onoda 6-1 3-6 7-5 in the Japan 2 Masters 3 round of 32 on hard. The upset overturned the form book — Michihisa Onoda came in leading the head-to-head 2–0. Tetsuya Chaen claimed a first win over Michihisa Onoda in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-25 | Japan F6 | R16 | carpet | Michihisa Onoda | 7-5 6-3 |
| 1999-05-12 | Japan F3 | QF | hard | Michihisa Onoda | 6-2 6-1 |
Averages over each player's completed matches in the selected window (2 vs 4). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About