Akihiro Tanaka defeated Sho Katayama 6-4 0-6 6-2 in the Japan F5 round of 32 on clay. The upset overturned the form book — Sho Katayama came in leading the head-to-head 1–0. Akihiro Tanaka claimed a first win over Sho Katayama in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-06-16 | Japan F7 | R32 | carpet | Sho Katayama | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.