Race calendar · March 2027
15 Ultra 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.
15 Ultra 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
Ultra races do not spread evenly across March. The busiest weekend is March 6 and March 7, with 8 of them.
By the numbers
The March Ultra races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
It is a lean month for the Ultra. March carries 15, against 45 in October and 4 in August, the quietest. A March race is worth planning around rather than picking late, because the one that fits your training block may be the only one within reach.
The busiest weekend is March 6 and March 7, with 8 Ultra races on those two days, and the single busiest day is Saturday, March 6 with 8. Every one of them is on a Saturday or a Sunday.
As early as you can. 13 of these March Ultra races already have a price increase on the calendar, and 15 are open for entry right now.
The typical entry is $50, with paid entries running from $20 up to $107, 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.
Across the 10 of these March Ultra races with published results from past editions, the median finisher ran 6:50:19, and the median winning time was 4:31:31. So anything under 6:50:19 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 45 runners, across the 10 of these March Ultra 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 9:33:00.
California has 2, Florida has 2, Texas has 2. If you are willing to travel, those are the states where a March weekend gives you the most to choose from.
Yes, 7 races around the United States get you off the pavement: 6 are trail races, and 1 mixes 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.
