Arata Onozawa advanced past Yan Bai via walkover in the Chinese Taipei F1 round of 16. Arata Onozawa narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-03 | China F12 | F | hard | Yan Bai | 6-2 6-3 |
| 2012-05-14 | China F7 | QF | hard | Yan Bai | 7-5 6-3 |
| 2008-03-17 | Japan F1 | R16 | hard | Arata Onozawa | 7-6(5) 7-6(4) |
Averages over each player's completed matches in the selected window (13 vs 184). 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