Sung Hee Han defeated Kanyapat Narattana 6-7 6-0 6-1 in the Bangkok 10K round of 16 on hard. The upset overturned the form book — Kanyapat Narattana came in leading the head-to-head 1–0, but Sung Hee Han had been the form player, winning 5 of their last 10 on hard. Sung Hee Han claimed a first win over Kanyapat Narattana in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-17 | Nonthaburi 10K | R32 | hard | Kanyapat Narattana | 6-2 3-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.