Bicester Tri Club raised £400 for the Fire Fighters Charity with a dedicated duathlon around the Bicester Motion Experience & Demonstration Track on 18 July.
The triathlon club regularly uses the site for its training, and the event was the first of the summer.
Competitors of all ages and all abilities pounded the Tarmac at the Summer Social, with a 1200m run followed by an 8km cycle and final 800m run for adults and an 800m run, 3km cycle and 400m run for youngsters under the age of 13.
Entry fees were donated directly to the charity, along with proceeds from cake sales.
Visit https://www.bicestertri.co.uk/ to learn more about the Bicester Tri Club and to join.