Is September a good month for a Marathon?
It is one of the thinnest months of the year for the Marathon. September carries 10, against 97 in October. Expect to book earlier and travel further, and start from the states below rather than from a date.
Race calendar · September 2026
10 Marathon races across the US in September 2026, sorted by date. Which weekends are busiest, what the fields actually run, entry fees, and where each one starts.
10 Marathon races in September 2026
By the numbers
The September Marathon races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
It is one of the thinnest months of the year for the Marathon. September carries 10, against 97 in October. Expect to book earlier and travel further, and start from the states below rather than from a date.
The busiest weekend is September 26 and September 27, with 10 Marathon races on those two days, and the single busiest day is Saturday, September 26 with 7. Every one of them is on a Saturday or a Sunday.
As early as you can. 1 of these September Marathon races already have a price increase on the calendar, and 9 are open for entry right now. Another 1 have published an opening date and have not opened yet.
The typical entry is $45, with paid entries running from $20 up to $120, and 1 that are free to enter. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
Yes, one race around the United States gets you off the pavement: 1 is a trail race. Surfaces are not always published, so it is worth checking a specific race before you register.
August and October sit either side of September, which is where most people look next when a date does not fit.