Erika Takao defeated Mari Tanaka 6-4 7-6 in the Yamaguchi 10K semi-final on clay. Erika Takao extended the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-08-13 | Istanbul 10K | R16 | hard | Mari Tanaka | 5-7 6-1 6-4 |
| 2011-09-05 | Noto 25K | R32 | carpet | Erika Takao | 6-4 6-1 |
| 2009-06-08 | Tokyo 10K | R16 | hard | Erika Takao | 6-3 7-5 |
| 2007-07-30 | Obihiro 25K | R16 | carpet | Mari Tanaka | 6-4 7-6(4) |
| 2005-09-19 | Ibaraki 25K | SF | hard | Erika Takao | 6-3 6-4 |
| 2003-05-19 | Gunma 10K | R32 | grass | Mari Tanaka | 6-4 6-2 |
Averages over each player's completed matches in the selected window (1 vs 3). 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. Small sample — read as indicative. About