title. For WBC World Heavyweight title. Win Leon Spinks Decision (unanimous) 15 (15) 01978-09-15 September 15, 1978 7001360000000000000 36 years, 7002241000000000000 241 days New Orleans, LA Won The Ring & WBA World Heavyweight titles; Vacated WBA title on 1979-09-06. Loss Leon Spinks Decision (split) 15 (15) 01978-02-15 February 15, 1978 7001360000000000000 36 years, 7001290000000000000 29 days