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 Oct 23, 2026.
When in July
The July Race Weekends
10K races are not spread evenly across July. Here is how the calendar actually falls, weekend by weekend, which is the part worth knowing before you book a trip or plan a taper around one.
Jul 3 - Jul 42
Jul 17 - Jul 182
Jul 31 - Aug 11
By the numbers
The Biggest Field
The largest field of any July 10K in Washington, from the most recent published results.
Common Questions About Running a July 10K in Washington
What is a good 10K time?
Across the 3 of these July 10K races with published results from past editions, the median finisher ran 1:01:19, and the median winning time was 41:08. So anything under 1:01:19 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.
How big is a typical July 10K field?
The median one finished 60 runners, across the 3 of these July 10K 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 1:40:34.
Are there trail 10K races in Washington in July?
Yes, one race around Washington gets you off the pavement: 1 mixes road and trail.