Andrew Shapiro, a 17-year-old, set three new world records for pull-ups on May 14 at a Relay for Life event in Fairfax County, Virginia (video below).
Andrew began at 8 a.m. and set a new world record in six hours with 3,515 pull-ups, a second record in 12 hours with 5,742, and a third world record (most pull-ups in 24 hours) with 7,306 in 18 hours, notes The Washington Post.
The teen broke the former Guinness World Record - 6,800 pull-ups - set in 2015 by Czech Republic athlete Jan Kares.
Andrew told The Post he was inspired by the TV reality athletic series "American Ninja Warrio," and his dad who has been fighting colon cancer for five years.
Andrew added that he hopes to audition for "American Ninja Warrior" in four years, which he says is "the biggest challenge out there."
His training included 10 pull-ups a minute for six hours non-stop while watching movies at home. For his diet, Andrew ate sushi and lots of pineapples.
"It was blood, sweat and hours and hours and hours of hard work," Shapiro told the newspaper.
In addition to the world records, Andrew raised $4,000 for the American Cancer Society.
"I’ve always liked challenging myself so I’ll add this to my resume as a person for 'American Ninja Warrior,'" Andrew said. "I figure they won’t say no to someone who has the world record for pull-ups."
In more world record news, Mao Weidong, a policeman in Beijing, China, set a new Guinness World Record for planking by completing the exercise nonstop for eight hours, one minute and one second on May 16, notes Reuters.
Weidong defeated the previous record-holder, retired U.S. Marine George Wood, in a head-to-head competition. Wood could not continue after seven hours, four minutes and five seconds.
Planking is when you get in a push-up position, but with your forearms on the ground. You then must hold this position while keeping your body straight. This exercise works out your abdominal and core muscles.
"Actually, as Special Weapons And Tactics police, we have lots of strength training every day," Weidong told Reuters TV. "I think the strength training is very helpful for doing planking."