Is March a good month for a 5K?
March sits in the middle of the year for the 5K, carrying 491 against 3,345 in October and 163 in August. Enough to choose from, and easier to get into than the races at the peak of the season.
Race calendar · March 2027
491 5K races across the US in March 2027, sorted by date. Which weekends are busiest, what the fields actually run, entry fees, and where each one starts.
491 5K races in March 2027
What the field actually runs
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 March
5K races do not spread evenly across March. The busiest weekend is March 13 and March 14, with 134 of them. Another 10 fall on a weekday.
By the numbers
The March 5K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
March sits in the middle of the year for the 5K, carrying 491 against 3,345 in October and 163 in August. Enough to choose from, and easier to get into than the races at the peak of the season.
The busiest weekend is March 13 and March 14, with 134 5K races on those two days, and the single busiest day is Saturday, March 20 with 115. Another 10 fall on a weekday, which is worth knowing if you are traveling for one.
As early as you can. 241 of these March 5K races already have a price increase on the calendar, and 404 are open for entry right now. Another 86 have published an opening date and have not opened yet.
The typical entry is $30, with paid entries running from $1 up to $70, and 7 that are free to enter. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
Across the 273 of these March 5K races with published results from past editions, the median finisher ran 36:28, and the median winning time was 18:46. So anything under 36:28 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.
The median one finished 201 runners, across the 273 of these March 5K 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 1:07:42.
Florida has 75, Texas has 60, California has 41, Georgia has 38, North Carolina has 31. If you are willing to travel, those are the states where a March weekend gives you the most to choose from.
Yes, 13 races around the United States get you off the pavement: 7 are trail races, and 6 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
February and April sit either side of March, which is where most people look next when a date does not fit.