Marathon Registrations Remain Strong

Of the 50 largest marathons in the U.S. in 2024, 28 of them were sold out prior to race day. That compares with only seven of the 50 that sold out early in 2019.

The growth of marathon running has been attributed to increased participation by the Gen Z age group. In one example, registrations by 20-something runners increased more than 50 percent at the New York City Marathon in the period 2019-2024.