Running Performance, Nationality, Sex and Age in 10km, Half-marathon, Marathon and 100km Ultra-marathon IAAF 1999-2015 We know that the fastest marathon runners from East Africa come and that the age of the fastest marathon runners is 30 years. However, it has not yet been investigated whether the age of the runners differs from different nationalities.We now have the marathon runners also the 10-km runners, the half marathon runners and the 100 km runners analyzed the listed in the leaderboard of the IAAF since 1999. In a total of 38,895 runners were over 10 km and half marathon athletes from Kenya.On the marathon track, both Kenyans such as Ethiopians were most often found.About 100km, however, the most Japanese were found.The best women were over 10km, half marathon and marathon older than men, but over 100km was no difference between the sexes.
Men were over all stretch faster than the women. Now, when you take all the runners of a country and compares with the runners of other countries so are only men from Ethiopia faster than men of all other countries. The complete evaluation can be found under https://pubmed.ncbi.nlm.nih.gov/28731980/