Participation and performance trends in 161km ultra-marathons in terms of nationality – a retrospective data analysis of worldwide participation from 1998-2011 In long-haul runs, the East African runner is known to dominate the marathon track.In ultra-sipe, the best runners are over 100 km from Japan.The 100 miles are performed mainly in the USA. We now examined from the period from 1998-2011 how the performance developed over 100 miles relating to the nationality of the runners.In the said period, the number of runners from North America, Europe and Australia increased.Most runners (84%) came from the USA.
Over the years, the share of runners from the USA increased while the share of runners rose from Europe. In parallel, over the years, the proportion of American runners in the TOP 3 as the share of top 3 runners from Europe increased. All numbers can be found under https://www.jhse.ua.es/article/view/2014-v9-n2-participation-and-performance-trends-in-161km-ultra-marathons-in-terms-of-nationality-a-a-retrospective-data-analysis-of-worldwide-participation-from-1998-2011