Sho Katayama defeated Arata Onozawa 6-3 6-3 in the Japan F9 round of 32 on hard. Sho Katayama extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-03-11 | Japan F1 | R32 | hard | Arata Onozawa | 6-4 6-3 |
| 2012-10-08 | Japan F8 | R32 | hard | Sho Katayama | 6-4 6-3 |
| 2012-03-19 | Japan F2 | R16 | hard | Sho Katayama | 6-4 6-4 |
| 2008-03-31 | Japan F3 | R32 | hard | Arata Onozawa | 7-5 6-4 |
Averages over each player's completed matches in the selected window (76 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