Hae Sung Kim defeated Seung Yeon Hong 7-6 6-0 in the Manila 10K round of 32 on hard. The upset overturned the form book — Seung Yeon Hong came in leading the head-to-head 1–0. Hae Sung Kim claimed a first win over Seung Yeon Hong in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-23 | Changwon 25K | R16 | hard | Seung Yeon Hong | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.