Shuichi Sekiguchi defeated Yu Chang 6-1 7-5 in the China F5 round of 32 on hard. The upset overturned the form book — Yu Chang came in leading the head-to-head 1–0, but Shuichi Sekiguchi had been the form player, winning 7 of their last 9 on hard. Shuichi Sekiguchi claimed a first win over Yu Chang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-03-25 | Japan F3 | QF | hard | Yu Chang | 6-3 6-4 |
Averages over each player's completed matches in the selected window (200 vs 1). 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