Masato Shiga defeated Yuuya Kibi 6-3 6-3 in the Japan F4 semi-final on hard. The upset overturned the form book — Yuuya Kibi came in leading the head-to-head 3–0. Masato Shiga claimed a first win over Yuuya Kibi in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-30 | Japan F6 | R32 | clay | Yuuya Kibi | 7-6(4) 4-6 6-0 |
| 2015-06-08 | Japan F6 | R32 | hard | Yuuya Kibi | 7-5 1-6 7-6(1) |
| 2014-10-13 | Australia F8 | R32 | hard | Yuuya Kibi | 7-6(3) 6-1 |
Averages over each player's completed matches in the selected window (59 vs 145). 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