Pupils at a Sheffield school took to the track to stage a Race at Your Place in aid of Cancer Research UK.
Fifty youngsters – 45 of them girls – took part in the event held on the running track at Chaucer School, Parson Cross.
And the event was so successful it is expected to raise about £2,000 for the charity.
School librarian Carol Wrigglesworth was one of the organisers and said it had been put together at relatively short notice.
She said: “We only had a month to organise the race.
“It is an initiative for schools which has grown out of the Race for Life event.
“The students were sponsored to complete a minimum of 10 laps of the 400-metre track, although one did 20.
“We had a Year 7 pupil, Luke Pickering, who completed his 10 laps in 24 minutes.
“However, many of the rest of the pupils just jogged or walked around.”
Headteacher Scott Burnside also got in on the action, although he managed just a single lap in the heat as he was wearing a suit.
Carol said: “Our top fundraiser so far is Nicole Austick, from Year 8, who has raised £101.
“It all went really well.
“It is something we shall do again next year.”