Hiroaki Otsuka vs Takuto Kako
Hiroaki Otsuka and Takuto Kako have met 2 times in recorded professional competition. Takuto Kako leads the series 2–0.
| Year | Result | Method | Event |
|---|---|---|---|
| 2018 | Takuto Kako | — | Seoul International Open IBJJF Jiu-Jits… |
| 2016 | Takuto Kako | — | Seoul International Open IBJJF Jiu-Jits… |