Bumpei Sato defeated Yuichi Ito 6-1 6-2 in the Japan F8 round of 32 on clay. The upset overturned the form book — Yuichi Ito came in leading the head-to-head 3–0. Bumpei Sato claimed a first win over Yuichi Ito in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-10 | Japan F5 | R32 | clay | Yuichi Ito | 6-4 6-4 |
| 2010-10-11 | Japan F9 | R16 | hard | Yuichi Ito | 6-4 6-2 |
| 2010-09-27 | China F8 | QF | hard | Yuichi Ito | 6-4 6-2 |
Averages over each player's completed matches in the selected window (2 vs 23). 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. Small sample — read as indicative. About