Like a lightning flash around the track, 11-year-old Luca Redwig might just be the fastest in the world … to crab walk 20m.
Luca's friends recorded him covering the distance in just 5.35 seconds - 0.76 seconds faster than current world record holder, Austin Keller from the USA.
Crab walking is the act of crawling backwards on all fours with your chest facing upwards.
It is an unusual skill, but the Friends School student has been honing his crab walk since he started gymnastics at the age of five.
"I knew I could do it pretty well in gymnastics because we would do a crab walk warm up," he said.
He found out about the world record while watching the TV show Officially Amazing.
"I saw the world record and I was like, 'I could try to beat that', and I trained and trained and it worked out."
Luca trained for about a month for the record attempt before smashing the standing record on his first try.
With the video now in the hands of Guinness World Records officials, he is waiting for the verdict.
Luca expects Mr Keller to attempt to break the record again if his claim is successful.
"But I'm going to beat it again once he beats it," he said.
Mr Keller, an Iowa State University freshman at the time, set the record for the fastest 20m human crab walk at 6.11 seconds in 2016.
The previous record was by a Japanese man in 2012 and was one secon dslower than Mr Keller's time.
In an interview with KCCI News, Keller had some advice for crab walkers wanting to go fast.
"You want to keep your chest high, and look forward and you want to move your arms and feet as fast as you can," he said.
"There are a lot of stupid records out there, and this might be the number one."
Luca now has his sights set on his next world record.
"I've always wanted to get a world record," he said.
"I've got lots of the books and I've been looking though them seeing what world records I could beat and I've found at least three.
"One I can beat is most seat drops on a trampoline."
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