The 35-year-old mother of three qualified for the event after winning silver in the 35-39 years age group at the British Championships in Rutland back in March.

Up against the world’s best, Thompson completed the 10 km run, 40 km cycle and 5 km run in 2.16.58 hr with split times of 42.39 min, 1.09.51 hr and 22.18 min.