In hot weather and on a difficult course in Kona, former modern pentathlete Fell finished 36th in the women’s 30-34 age group in a time of 11.01.56 hours.
Her strengths were the swim and the run – both pentathlon events. She managed the 2.4-mile swim in 59.59 minutes, she then completed 112-mile cycle in 6:01.44 before finishing with a 3:50.07 marathon run.
Last month she claimed a top 10 age group finish at the Ironman 70.3 World Championships in America.
Holder finished 139th out of 293 competitors in the men’s 45-49 category in Kona, clocking a time of 10:52.56.
He completed the swim in 1:03.09 before enjoying a good cycle section, clocking 5:07.07. With conditions getting tougher, Holder then finished with a 4:34.05 marathon run.
He had qualified for the World Championships after clocking 10:00.55 at the Weymouth Ironman.