This is 54-year-old Mark Jordan, and he is an absolute TANK.
The Texas man now owns the world record for the number of pull-ups done within a 24 hour period. So how many did he get through? Only 4,321.
Mark completed the record a few months ago, but Guinness World Records have only just made it official. However, not only did he smash the record, he also raised money for Hammons Education Leadership program in the process.