- Given Name: 石井巧太郎
- Amateur MMA Record: 1-2-0 (Win-Loss-Draw)
- Nickname: N/A
- Current Streak: 1 Loss
- Age & Date of Birth: N/A
- Last Fight: October 15, 2017 in GRACHAN
- Weight Class: Featherweight | Last Weigh-In: N/A
- Affiliation: Maruwa Gym Yokohama
- Height: N/A | Reach: N/A
- Career Disclosed Earnings: $0 USD
- Born: Japan
- Fighting out of: Japan
Regional Rankings Rankings FAQ
Kotaro Ishii is ineligible for regional rankings due to inactivity.
Fighters must have at least one completed MMA bout in the past two years to be ranked.