Half Marathons 2025 Usa. Here is the complete calendar 2025 of the races in united states: The 2025 runner's world marathon calendar spans the united states, and includes everything from marathons to half marathon, and even a few 5ks, 10ks, and more.

For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation. The trail half marathon events have a trail symbol aside the race.