When in April are most 5K races held?
The busiest weekend in California is April 10 and April 11, with 17 5K races on those two days, and the single busiest day is Saturday, April 10 with 15. Every one of them is on a Saturday or a Sunday.
Race calendar · April 2027 · California
Every 5K in California in April 2027, all 52 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
52 5K races in April 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 April
5K races do not spread evenly across April. The busiest weekend is April 10 and April 11, with 17 of them.
By the numbers
The April 5K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
The busiest weekend in California is April 10 and April 11, with 17 5K races on those two days, and the single busiest day is Saturday, April 10 with 15. Every one of them is on a Saturday or a Sunday.
As early as you can. 24 of these April 5K races already have a price increase on the calendar, and 43 are open for entry right now. Another 8 have published an opening date and have not opened yet.
The typical entry is $30, with paid entries running from $15 up to $55. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
Across the 14 of these April 5K races with published results from past editions, the median finisher ran 38:24, and the median winning time was 19:31. So anything under 38:24 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 190 runners, across the 14 of these April 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 1:15:52.
Yes, one race around California 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.
March and May sit either side of April, which is where most people look next when a date does not fit.