Performance improvement of master triathletes at Ironman Hawaii From 1986-2010, the number of master triathlets (over 40 years old) has increased at the Ironman Hawaii, while the number of triathlets decreased younger than 40 years.Male triathlets over 44 years and female athletes over 40 years could significantly improve their performance over the course of these 25 years.
In the age groups 40-44 years to 55-59 years, the difference of performance between the sexes decreased significantly. Further details under https://pubmed.ncbi.nlm.nih.gov/22367579/