Is August a good month for a Marathon?
It is one of the thinnest months of the year for the Marathon. August 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 · August 2027
August 2027 Marathon Races in the United States
10 Marathon races across the US in August 2027, sorted by date. Which weekends are busiest, what the fields actually run, entry fees, and where each one starts.
10 Marathon races in August 2027
What the field actually runs
August Marathon Races, By the Numbers
4:27:15Median finish time
2:48:53Median winning time
52Median field size
9August Marathon races with published results
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Sep 22, 2026.
When in August
The August Race Weekends
Marathon races do not spread evenly across August. The busiest weekend is August 14 and August 15, with 5 of them.
By the numbers
The Biggest and Longest-Running
The August Marathon races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
August Marathon Races by State
August Marathon Races by City
Soonest Marathon Races in August
10 total Sun, Aug 1, 2027Bound for Boston Marathon & Half Marathon - Denver Denver, CORegistration opens Dec 1From $45Details Sat, Aug 14, 2027Run S'more 24 Nashotah, WIFrom $35Details Sat, Aug 14, 2027Dark Horse Trail Series (26.2 - 13.1 - 10k) Mill Spring, NCFrom $30Details Sat, Aug 14, 2027Redwood (Summer) Trail Run Oakland, CAFrom $60Details Sat, Aug 14, 2027Paavo Nurmi Marathon Hurley, WIFrom $35Details Sun, Aug 15, 2027Bound for Boston Marathon & Half Marathon - Minneapolis Richfield, MNFrom $45Details Sat, Aug 21, 2027Moonlight on the Falls - Marathon, Half Marathon, Quarter Marathon, and Distance Challenge Davis, WVFrom $82Details Sun, Aug 22, 2027Wausau Marathon Wausau, WIRegistration opens Sep 28From $40Details Sat, Aug 28, 2027Runtastic NEBO Payson, UTFrom $35Details Sun, Aug 29, 2027Millennium Meadows Marathon Grand Rapids, MIFrom $45Details
Common Questions About Running an August Marathon
When in August are most Marathon races held?
The busiest weekend is August 14 and August 15, with 5 Marathon races on those two days, and the single busiest day is Saturday, August 14 with 4. Every one of them is on a Saturday or a Sunday.
When should I sign up for an August Marathon?
As early as you can. 9 of these August Marathon races already have a price increase on the calendar, and 8 are open for entry right now. Another 2 have published an opening date and have not opened yet.
How much does an August Marathon cost to enter?
The typical entry is $45, with paid entries running from $30 up to $82. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
What is a good Marathon time?
Across the 9 of these August Marathon races with published results from past editions, the median finisher ran 4:27:15, and the median winning time was 2:48:53. So anything under 4:27:15 puts you in the faster half of a typical field. That is the middle of these RunSignup fields, walkers and charity entrants included, not a national average.
How big is a typical August Marathon field?
The median one finished 52 runners, across the 9 of these August Marathon races with published results from past editions. Most are far smaller than the big-city events people picture, which means less crowding at the start and a friendlier field, with a last recorded finisher at 6:30:50.
Are there trail Marathon races in August?
Yes, 2 races around the United States get you off the pavement: 2 are trail races. Surfaces are not always published, so it is worth checking a specific race before you register.
Marathon Races in Other Months
July and September sit either side of August, which is where most people look next when a date does not fit.