Ji Sung Nam defeated Yasutaka Uchiyama 6-7 7-5 6-3 in the Korea F4 round of 16 on hard. The result followed the form book — Ji Sung Nam came in leading the head-to-head 2–0. Ji Sung Nam extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-04-15 | China F2 | R32 | hard | Ji Sung Nam | 7-6(2) 7-6(7) |
| 2012-06-11 | Japan F5 | R16 | clay | Ji Sung Nam | 7-5 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.