Xin Yuan Yu defeated Hyung Tae Kwon 7-6 6-1 in the Japan F8 round of 32 on hard. The upset overturned the form book — Hyung Tae Kwon came in leading the head-to-head 1–0. Xin Yuan Yu claimed a first win over Hyung Tae Kwon in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-08-14 | Thailand F5 | R16 | hard | Hyung Tae Kwon | 7-6(4) 2-6 7-6(1) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.