Yuuki Tanaka defeated Hirono Watanabe 3-6 6-4 6-2 in the Tokyo 10K round of 32 on hard. Yuuki Tanaka extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-04 | Fukuoka $50K | Q32 | grass | Yuuki Tanaka | 6-2 6-1 |
| 2010-11-15 | Hyogo 10K | R16 | carpet | Hirono Watanabe | 4-6 6-3 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.