- Colin Anderson
- 130.54 kilogram(s)
- United States (Huntsville)
The heaviest person to complete an ultra marathon is 130.54 kg (287.8 lb), and was achieved by Colin Anderson (USA), at the Rocky Raccoon 100-mile endurance run, in Huntsville State Park, Huntsville, Texas, USA, on 7 February 2016.
Colin Anderson did intensive training for three months before his successful record attempt.