The age-related performance decline in marathon cross-country skiing - the Engadin Ski Marathon The age of the best marathon performance has been well examined for the marathon. In addition to the marathon, there are also cross-country skiing over the marathon track.We examined the numbers of almost 200,000 finishers at the Engadin Ski Marathon from 1998 to 2016.If you compare all men with all women, there is no difference in the final time.On the other hand, the top ten men are faster for every age group than the top ten women. If you look for every age year, the best time is reached for 40 years in men like women.AS does not change if you only take the top ten for every age year.
These numbers pointing that in a ski resort the age of the best marathon performance is achieved significantly later than in a marathon. The whole work can be found under https://pubmed.ncbi.nlm.nih.gov/28532238/