Na Lae Han defeated Tomoko Sugano 4-6 6-4 6-1 in the Yeong Wol 10K round of 32 on hard. The upset overturned the form book — Tomoko Sugano came in leading the head-to-head 1–0. Na Lae Han claimed a first win over Tomoko Sugano in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-29 | Yeong Wol 10K | R32 | hard | Tomoko Sugano | 6-3 3-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.