Kai Chen Chang defeated Nao Hibino 6-1 6-3 in the Tsukuba 25K semi-final on hard. The upset overturned the form book — Nao Hibino came in leading the head-to-head 1–0. Kai Chen Chang claimed a first win over Nao Hibino in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-09-18 | Seoul | R32 | hard | Nao Hibino | 6-2 6-4 |
Averages over each player's completed matches in the selected window (98 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Hibino N.: 4 days rest · 3 matches, 54 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About