An event dubbed "the world's shortest sprint race" was held in Oita Prefecture, western Japan, to mark National Sports Day.
The 10-meter footrace is an annual public holiday fixture at the hot springs resort city of Beppu.
About 170 participants, ranging from 4 to 84 years old, gathered at an elementary school under blue skies.
They were separated into 13 groups based on age, sprinting as fast as their legs could carry them over the short distance.
Some had audience roaring in laughter as they jumped the starter's gun. Others continued to sprint well beyond the finish line.
An elementary school student said he was disappointed not to win, but would try again next year.
The oldest competitor, an 84-year-old man, expressed his joy at sharing the experience with so many people. He said running 10 kilometers every day meant the sport had become his way of life.