Qualification for the UTMB Finals for age group winners is possible via the UTMB World Series Majors
The rule is as follows:
- Overall assignment of 55 bibs for age category runners per race
- At least one bib is assigned for each age category represented
- The other bib numbers are assigned in proportion to the number of runners present in each age category compared to the total number of total runners in the race.
Age groups are based on those of World Athletics and take into account the athlete's age as of December 31 of the year of the event.