Chun Yan He defeated Natchanok Saenyaukhot 6-2 6-0 in the Pattaya 10K round of 32 on hard. The upset overturned the form book — Natchanok Saenyaukhot came in leading the head-to-head 1–0, but Chun Yan He had been the form player, winning 3 of their last 6 on hard. Chun Yan He claimed a first win over Natchanok Saenyaukhot in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-03 | Solo 10K | R16 | hard | Natchanok Saenyaukhot | 6-4 6-2 |