Half Marathons 2025 Usa Dates. Calendar view listing counts of race events for each day of the month. Whether you’re running your first half marathon, looking for a new race to run, or just creating a bucket list of fun half marathons in 2025, there are thousands of half marathons.

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. Race calendar of california half marathons, to texas half marathons, florida half marathons, colorado half.