Mi Yoo defeated Napaporn Tongsalee 6-2 6-3 in the Inchon 25K round of 32 on hard. The upset overturned the form book — Napaporn Tongsalee came in leading the head-to-head 1–0, but Mi Yoo had been the form player, winning 6 of their last 8 on hard. Mi Yoo claimed a first win over Napaporn Tongsalee in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-19 | Changwon 25K | R16 | hard | Napaporn Tongsalee | 6-7(1) 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.