World Marathon Calendar 2025. Experience the thrill of göteborgsvarvet in may 2025, where live music and vibrant crowds make every step unforgettable. In 1921 iaaf set the marathon’s distance to standard 42.195 km or 26.2 miles.
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. Completed the weeklong marathon des sables in.