Yi Miao Zhou defeated Yan Chong Chen 7-6 6-4 in the Beijing 25K round of 16 on hard. The upset overturned the form book — Yan Chong Chen came in leading the head-to-head 1–0, but Yi Miao Zhou had been the form player, winning 4 of their last 6 on hard. Yi Miao Zhou claimed a first win over Yan Chong Chen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-29 | Xiamen 25K | R32 | hard | Yan Chong Chen | 6-4 7-6(4) |
Averages over each player's completed matches in the selected window (8 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