Hundreds of young athletes pedalled to victory as they crossed the finish line of Norwood's 2014 Junior Bike Ride and Duathlon.
A total of 350 children and teenagers cycled and ran around the course at Aldenham Country Park, despite the sunny weather and high temperatures.
There were three challenges to choose from - a five mile bike ride, a ten mile bike ride and a Duathlon, made up of a 1.5 mile run, a five-mile bike ride and then a final 1.5 mile run.
Competitors ranged in age from as young as five to sixteen.
The sponsored event is hoped to have raised more than £40,000 for Norwood, a leading Jewish charity that supports vulnerable children and their families, and adults with learning disabilities.
Norwood’s head of challenges Ian Tate said: "It's a tough event at the best of times but because of all the recent rain there were some very heavy, muddy areas which made the ride even more challenging. Everyone who took part should be feeling very proud of themselves."
"We now need all the participants to let all their friends and family know about the great challenge they have completed and ask for sponsorship. The money raised will do an enormous amount of good."