Yusuke Watanuki defeated Yuichi Ito 6-2 6-2 in the Japan F1 round of 32 on hard. The upset overturned the form book — Yuichi Ito came in leading the head-to-head 4–0. Yusuke Watanuki claimed a first win over Yuichi Ito in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-23 | Australia F8 | SF | hard | Yuichi Ito | 4-6 7-5 6-3 |
| 2012-06-11 | Japan F5 | R32 | clay | Yuichi Ito | 6-2 7-5 |
| 2010-10-18 | Japan F10 | R32 | hard | Yuichi Ito | 7-6(9) 6-4 |
| 2009-06-29 | Japan F7 | QF | clay | Yuichi Ito | 6-2 6-1 |
Averages over each player's completed matches in the selected window (52 vs 65). 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