7-Year Old Triathlete Sets 5K Record

William Tullis was born and bred to race.

Last month in Rome, Georgia, 7-year-old William Tullis ran a 5K in 21 minutes and 21 seconds. His "Roman Rumble" race time set the single-age world record by 53 seconds.

William, who comes from a family of triathletes, began racing triathlons when we was 4 years old, but only "fell into" running this past March. His father told Runner's World that "his hands were not strong enough to unclasp his helmet after the bike. Never mind, he did the run with the helmet on."

In August of this year, Tullis took first place in his age division at the Hy-Vee Kids Triathalon National Championship in Iowa and second place at the USA Youth Triathlon National Championship in Ohio.

The majority of Tullis's training is cross-training—swimming several days a week, biking, and playing other sports with friends. He only runs once a week.

7-Year Old Triathlete Sets 5K Record

Photo: Josh Tullis

Photo Credit: Getty Images // Thinkstock