90%
75%
USA
Canada
Australia
UK
US States US Marathons Ranked by Difficulty Last Updated: June 2nd, 2026 9:47 am PDT Marathon difficulty in the US doesn’t follow a single pattern. Some courses crush runners with thousands of feet of elevation gain, others wear them down through weather, and a few manage to do both. The difference between the hardest and easiest marathons in the country is enormous — and it’s not always where you’d expect. To measure this, […]
