The actor and comedian announced over the weekend that he’ll be running the New York City Marathon in November.
“I want to talk about moonshots. What is that? I'm talking moonshots,” Hart said in a video.
“(Eliud) Kipchoge running the full marathon in 2 hours and 25 seconds. After witnessing that type of greatness, it inspired me to get my own.”
Kipchoge, the Kenyan long-distance runner, won a gold medal at the 2016 Olympics. He barely missed a sub-two hour marathon in May at the Monza Grand Prix circuit in Italy.
The “Ride Along” star began running a few years ago and has frequently announced spontaneous races while on comedy tours.
On Saturday, he even co-hosted the New York City Rally HealthFest at Rockefeller Park.
“I got little legs,” Hart said in his announcement, “but a big heart.”
The New York City Marathon, which boasted more than 51,000 runners last year, races through all five boroughs.
Celebrity runners have included Katie Holmes, Ryan Reynolds, P. Diddy, Ed Norton and Teri Hatcher.