Masato Shiga defeated Yusuke Watanuki 6-1 6-4 in the Japan F1 round of 32 on hard. The result followed the form book — Masato Shiga came in leading the head-to-head 2–0. Masato Shiga extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-04-03 | Japan F5 | SF | hard | Masato Shiga | 7-6(0) 7-5 |
| 2016-04-04 | Japan F5 | R32 | hard | Masato Shiga | 7-6(5) 6-4 |
Averages over each player's completed matches in the selected window (59 vs 52). 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