Participation and performance trends in 6-hour ultra-marathoners – a retrospective data analysis of worldwide participation from 1991-2010 In the area of ultramarathon, the 6-hour run is the shortest route and defines exactly the term ultramarathon with the duration of 6 hours.We studied the trends from 1991 to 2010 for competitions and runners in the 6-hour race. The number of participants took over the years for men like women linearly to where men made much more a 6-hour run than women.The relationship man to Mrs. remained stable since 1991 4. Both men like women, as among the women, showed the greatest increase in the age group 45-49 years.
Most runners came from Europe, and the European runners also achieved most miles in the 6 hours. More details under https://www.jhse.ua.es/article/view/2013-v8-n4-participation-and-performance-trends-in-6-hour-ultra-marathoners-a-a-retrospective-data-analysis-of-worldwide-participation-from-1991-2010