A 95-year-old Japanese man shattered the 100 metres world record in the 95-99 age group at a seniors athletics meeting on Sunday, organisers said.
Kozo Haraguchi splashed through the rain to clock 22.04 seconds in Miyazaki, southern Japan, slicing almost two seconds off the previous world record of 24.01.
After being informed of his achievement, Haraguchi beamed: "Oh dear, really? Thank you very much."
Five years ago, Haraguchi set a world record for the 90-94 age bracket with a time of 18.08.
After rewriting the record books again, Haraguchi modestly said he had just tried to concentrate on not falling over.
"Everyone was cheering me on so I kept thinking I mustn't fall over," he told reporters. "From now on, I will keep going as hard as my strength lets me."
Haraguchi took up athletics at 65 to keep fit and said the secret of his success was a one-hour walk every morning around his neighbourhood.