Participation and Performance Analysis in Children and Adolescents Competing in Time-Limited Ultra-Endurance Running Events UltraMarathon runs are popular in the adult population increasing popularity, especially due to Masterathlen, which are older than 35 years. Teenagers runners under 19, however, take part in ultramarathons, and an increase was observed at distanced runs.However, there are no data on temporary ultramarathons in this age group. This study examined the participation and performance trends with time-limited ultramarathons, including multi-day events, under runners under 19 years. Between 1990 and 2018, the most popular events recorded a total of 214 places for 6-hour runs, 247 for 12-hour runs and 805 for 24-hour runs. The majority of athletes came from Europe and North America.Only a minority participated in multi-day ultramarathons. Overall, the speed increased with age, but the running speed decreased over all years for 6- and 24-hour runs with increasing number of participants.
In summary, young ultraplasters were identified in terms of participation and performance at the various time-limited events, the age of athletes and their country of origin. The work can be found under https://www.mdpi.com/1660-4601/17/5/1628