NASCAR star Jimmie Johnson excelled in his Boston Marathon debut on Monday, navigating the 26.2-mile course in 3 hours, 9 minutes and 7 seconds.
The strong performance came about 36 hours after the 43-year-old Johnson drove 400 laps at Richmond Raceway in Virginia.
Which begs the question: Is it tougher to run 200 to 500 miles in a NASCAR vehicle or run 26 miles on foot through the streets of Boston?
"Twenty-six without a doubt," Johnson told the CBS station in Boston.
Johnson wore bib No. 4848, corresponding to his 48 car, and said the first half of the race was pretty easy. Then he realized the work was about to start; it certainly picked up in intensity when he neared the famous hill about three-fourths into the race.
"I wish I had my car at Heartbreak Hill," Johnson joked afterward. "It would have made it a lot easier."
The seven-time NASCAR Cup champion fell short of his three-hour goal in his first-ever marathon, but summed up his Boston trek this way:
"What an incredible experience," Johnson said.