Takuto Niki defeated Oh Hee Kwon 7-5 6-4 in the Japan F6 round of 16 on grass. Takuto Niki extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-06-11 | Japan F5 | R16 | clay | Takuto Niki | 7-6(4) 6-1 |
| 2010-06-07 | Japan F5 | R16 | clay | Oh Hee Kwon | 7-5 3-6 6-4 |
Averages over each player's completed matches in the selected window (200 vs 17). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About