Race calendar · December 2026
1,209 5K races across the US in December 2026, sorted by date. Which weekends are busiest, what the fields actually run, entry fees, and where each one starts.
December 5Ks split into two very different races depending on where you line up. In the South and parts of the West, conditions are forgiving enough to chase a personal best. In the Midwest and Northeast, cold air, wind, and the occasional slick surface mean the same 3.1 miles asks something different of you entirely.
The holiday calendar shapes December racing more than any other factor. Events lean festive, charitable, and family-friendly, which makes the month genuinely welcoming for newer runners and a low-pressure tune-up for those wrapping up a fall build. Expect costumes, crowds of all ages, and shorter course briefings.
The calendar thins noticeably as the month advances. The early weekends carry the heaviest load, and options become more localized after mid-month. If you want to race late December, plan around what is close to home rather than what looks good on paper from a distance.
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 Oct 16, 2026.
When in December
5K races are not spread evenly across December. 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.
By the numbers
The December 5K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
It is one of the busier months. December carries 1,209 5K races, against 2,775 in November, which is the fullest month of the year. There is a real choice of dates here, with less competition for entries than the peak of the season.
In the South and Southwest, a long-sleeve layer and gloves at the start is usually enough, and you may overheat if you add more. In the North, treat it like a cold-weather interval session: wind-resistant outer layer, gloves, and a hat. The 3.1-mile distance means you will not warm up as much as you would in a longer race, so err toward one layer too many.
Both exist on the same weekend. Holiday-themed events with costumes and charity tie-ins draw walkers and first-timers alongside competitive runners. If you want a clock-focused effort, look for events that are part of a larger race weekend, like a marathon or half marathon that also offers a 5K distance, which tend to run a tighter race operation.
A focused six-week block is enough for most runners to arrive fit and sharp for 3.1 miles. If you are coming off a fall half marathon or marathon, December is a natural spot to drop in a low-pressure 5K during recovery, with no specific build required. Runners starting from scratch should simply aim for consistent easy mileage through November.
Many December 5Ks share a weekend with community events, charity drives, and school activities, so parking and road closures can be heavier than you expect for a small race. Check the event site for start-time details a week out. Late-December races around the holidays sometimes adjust their schedules, so confirm the date has not shifted before you travel.
The busiest weekend is December 5 and December 6, with 432 of them, 335 of those on Saturday, December 5. Another 94 fall on a weekday, which is worth knowing if you are traveling for one.
Across the 574 of these December 5K races with published results from past editions, the median finisher ran 35:01, and the median winning time was 18:20. So anything under 35:01 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 160 runners, across the 574 of these December 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 1:04:10.
Florida has 182, Texas has 129, California has 75, Georgia has 63, North Carolina has 60. If you are willing to travel, those are the states where a December weekend gives you the most to choose from.
Yes, 24 races around the United States get you off the pavement: 9 are trail races, and 15 mix road and trail.
