Keisuke Watanuki defeated Yusuke Takahashi 6-4 6-3 in the Japan F4 qualifying round of 32 on hard. The upset overturned the form book — Yusuke Takahashi came in leading the head-to-head 1–0. Keisuke Watanuki claimed a first win over Yusuke Takahashi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-31 | Japan F6 | R32 | clay | Yusuke Takahashi | 6-3 6-4 |
Averages over each player's completed matches in the selected window (10 vs 199). 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