His resignation comes at a highly sensitive time, with protests across the country after the killing of George Floyd on May 25.
CrossFit founder Greg Glassman has stepped down as chief executive
"I'm stepping down as CEO of CrossFit, and I have decided to retire. On Saturday I created a rift in the CrossFit community and unintentionally hurt many of its members."
The CrossFit Games are well known among amateur athletes in the US. Sporty types compete in workouts they learn about days, hours, or minutes beforehand, earning cash prizes and the title of "Fittest on Earth" if they win.