Daniel Yoo defeated Hyung Tae Kwon 6-0 4-6 7-6 in the Korea Rep F1 round of 32 on hard. The upset overturned the form book — Hyung Tae Kwon came in leading the head-to-head 1–0. Daniel Yoo 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 |
|---|---|---|---|---|---|
| 2007-04-16 | Japan F5 | R16 | carpet | Hyung Tae Kwon | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.