Tadayuki Longhi defeated Yohei Ono 6-4 6-1 in the Japan F2 q16 on hard. The upset overturned the form book — Yohei Ono came in leading the head-to-head 1–0, but Tadayuki Longhi had been the form player, winning 4 of their last 6 on hard. Tadayuki Longhi claimed a first win over Yohei Ono in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-10 | Japan F5 | R16 | clay | Yohei Ono | 6-7(5) 7-6(7) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.