Chieh Fu Wang defeated Yusuke Watanuki 6-1 4-6 6-4 in the Japan F5 round of 32 on clay. The upset overturned the form book — Yusuke Watanuki came in leading the head-to-head 1–0. Chieh Fu Wang claimed a first win over Yusuke Watanuki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-06-09 | Japan F6 | R16 | hard | Yusuke Watanuki | 6-3 6-1 |
Averages over each player's completed matches in the selected window (7 vs 52). 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