- Name: William Osborne
- Pro MMA Record: 3-3-0 (Win-Loss-Draw)
- Nickname: Frank Nasty
- Current Streak: 1 Loss
- Age: 32 | Date of Birth: 1987.01.16
- Last Fight: March 31, 2017 in AFC
- Weight Class: Bantamweight | Last Weigh-In: 136.4 lbs
- Affiliation: N/A
- Height: 6'0" (183cm) | Reach: N/A
- Career Disclosed Earnings: $0 USD
- Born: United States
- Fighting out of: Iowa
Regional Rankings Rankings FAQ
William Osborne 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.