Tadayuki Longhi defeated Yuki Matsuo 7-5 6-2 in the Japan F2 qualifying round of 16 on hard. The upset overturned the form book — Yuki Matsuo came in leading the head-to-head 1–0. Tadayuki Longhi claimed a first win over Yuki Matsuo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-09 | Japan F1 | Q16 | hard | Yuki Matsuo | 6-3 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.