- Given Name: 薄井直輝, Usui Naoki
- Pro MMA Record: 3-4-0 (Win-Loss-Draw)
- Nickname: Atom
- Current Streak: 1 Loss
- Age: 27 | Date of Birth: 1993.04.27
- Last Fight: August 11, 2018 in Fighting Nexus
- Weight Class: Strawweight | Last Weigh-In: 124.1 lbs
- Affiliation: R-BLOOD
- Height: 5'4" (163cm) | Reach: N/A
- Career Disclosed Earnings: $0 USD
- Born: Japan
- Fighting out of: Japan
Regional Rankings Rankings FAQ
Naoki Usui 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.