Shota Tagawa defeated Hiroyasu Ehara 6-4 6-7 6-3 in the Japan F8 round of 32 on hard. The upset overturned the form book — Hiroyasu Ehara came in leading the head-to-head 2–0, but Shota Tagawa had been the form player, winning 3 of their last 7 on hard. Shota Tagawa claimed a first win over Hiroyasu Ehara in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-17 | Japan F6 | R32 | carpet | Hiroyasu Ehara | 6-1 7-5 |
| 2012-06-18 | Japan F6 | SF | grass | Hiroyasu Ehara | 6-4 6-7(5) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.