The children and staff of Forres Sandle Manor School in Fordingbridge have raised £1,000 in aid of the Brain Tumour Research charity.
Over 70 pupils and staff took to the Triathlon course, which included lengths of the swimming pool, a cycle ride, and a run through the school grounds.
Deputy Headmaster and organiser of the event Mr William Peak said:
I am beyond delighted that the Year 8s selected a charity that they knew meant so much to so many then worked tirelessly to promote, organise and support an amazing afternoon.
As well as a music performance by pupils and wonderful food provided by Holroyd Howe, the event even saw an impromptu flypast by the Red Arrows!