Arata Onozawa defeated Kento Takeuchi 6-3 6-4 in the Indonesia F2 semi-final on hard. The upset overturned the form book — Kento Takeuchi came in leading the head-to-head 5–2. Arata Onozawa narrowed the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-03-14 | Japan F2 | R32 | hard | Kento Takeuchi | 2-6 7-5 |
| 2014-07-21 | Hong Kong F3 | QF | hard | Kento Takeuchi | 6-4 |
| 2011-07-11 | Chinese Taipei F2 | R32 | hard | Kento Takeuchi | 6-3 6-2 |
| 2011-06-27 | Japan F8 | R32 | clay | Arata Onozawa | 6-3 2-6 7-6(5) |
| 2011-06-13 | Japan F6 | R32 | hard | Arata Onozawa | 6-4 6-4 |
| 2008-06-16 | Japan F5 | QF | carpet | Kento Takeuchi | 6-4 7-5 |
| 2007-10-22 | Japan F11 | R32 | hard | Kento Takeuchi | 6-3 6-2 |
Averages over each player's completed matches in the selected window (13 vs 81). 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