Kyung Mi Chang defeated Napaporn Tongsalee 6-3 7-6 in the Changwon 25K semi-final on hard. The upset overturned the form book — Napaporn Tongsalee came in leading the head-to-head 1–0, but Kyung Mi Chang had been the form player, winning 3 of their last 7 on hard. Kyung Mi Chang claimed a first win over Napaporn Tongsalee in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-14 | Changwon 25K | R32 | hard | Napaporn Tongsalee | 6-3 3-6 6-3 |