Yasutaka Uchiyama defeated Bumpei Sato 6-0 6-4 in the Japan F7 round of 32 on clay. The upset overturned the form book — Bumpei Sato came in leading the head-to-head 1–0. Yasutaka Uchiyama claimed a first win over Bumpei Sato in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-10-15 | Japan F9 | R32 | hard | Bumpei Sato | 6-4 6-3 |
Averages over each player's completed matches in the selected window (199 vs 2). 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