Race guides / Flat and fast

Fast marathons in the US.

American marathons on flat courses, ranked by total climb. A flat course is the biggest single thing you can choose in your favour on race day; the date and the likely weather are the next, so check both before entering. 17 flat marathons in United States, racing from 7 Nov 2026 to 10 Oct 2027. The flattest, Miami Marathon, climbs 38 m in total.