Lieutenant Michael P. Murphy originally called this workout "Body Armor". He gave it this name because he performed the routine while wearing his 20-pound military-issued body armor or a weighted vest to better simulate the conditions he faced as a Navy SEAL.
After his death in Afghanistan in 2005, CrossFit officially renamed the workout "Murph" in his honor when it was first posted as a Hero WOD (Workout of the Day) on August 18, 2005.
The workout consists of:
- 1-mile run
- 100 pull-ups
- 200 push-ups
- 300 air squats
- 1-mile run
All performed while wearing a 20-pound vest or body armor.
