Hiromasa Oku advanced when Arata Onozawa retired 6-2 3-1 in the Japan F8 round of 16. Hiromasa Oku extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-06-16 | Japan F7 | R16 | carpet | Hiromasa Oku | 6-4 1-0 |
Averages over each player's completed matches in the selected window (19 vs 46). 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