A comparison of participation and performance in age-group finishers competing in and qualifying for Ironman Hawaii For the ‘Iroman Hawaii’ triathlets must qualify, with the qualification by majority about age groups. We have compared the distribution and performance of the Ironman Triathlen in the qualifiers with the ‘Ironman Hawaii’ for the year 2010.Athletes between 25 and 49 years made a larger part of the qualifiers, while athletes were represented by 18-24 and 50-79 years more on the ‘Ironman Hawaii’. With regard to performance in the individual disciplines as well as the entire competition time, there were significant differences between the qualifiers and the ‘Ironman Hawaii’ in the individual age groups. Under the line, athletes seem between 25-49 years and men on the ‘Ironman Hawaii’ clearly subordinate when compared to the qualifiers.This group of athletes seems to have significantly worse cards to qualify for the ‘Ironman Hawaii’. All results are shown in detail in https://www.dovepress.com/a-comparison-of-participation-and-performance-in-age-group-finishers-c-peer-reviewed-fulltext-article-ijgm