Ultrarunner Pete Kostelnick completed a 3,067-mile run across the United States from San Francisco to New York in a record 42 days, six hours and 30 minutes.
The previous record os 46 days, 8 hours and 36 minutes was held by Frank Giannio Jr. from his run in 1980.
Kostelnick, 29, averaged about 72 miles per day before arriving at City Hall in New York City, according to Runner's World.
The Nebraska native would begin most of his days with a 3 a.m. run and then run about 40 miles before a short break and then his second run of the day.
He is an accomplished ultramarathoner having won the last two grueling Badwater Marathon races, a 135-mile trek in the Badwater Basin of California's Death Valley in July.