Guilherme Ochiai defeated Hyun Woo Nam 6-4 6-4 in the Japan F3 round of 32 on carpet. Guilherme Ochiai extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-04-09 | Japan F4 | R16 | hard | Guilherme Ochiai | 7-6(5) 6-1 |
| 2006-02-20 | India 1 4 | R16 | hard | Hyun Woo Nam | 2-6 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.