When in October are most half marathons held?
The busiest weekend in Missouri is October 2 and October 3, with 3 of them, 2 of those on Saturday, October 2. Every one of them is on a Saturday or a Sunday.
Race calendar · October 2027 · Missouri
Half Marathons in Missouri in October 2027
Every Half Marathon in Missouri in October 2027, all 7 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
What the field actually runs
October Half Marathons, By the Numbers
2:04:52Median finish time
1:27:22Median winning time
58Median field size
5October half marathons with published results
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 Nov 12, 2026.
When in October
The October Race Weekends
Half marathons are not spread evenly across October. 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 Biggest Field
The largest field of any October Half Marathon in Missouri, from the most recent published results.
Missouri Half Marathons by City in October
All Half Marathons in Missouri in October
7 total Sat, Oct 2, 2027Golden Harvest Half Marathon & 5K/10K - St. Louis St. Louis, MOFrom $50Details Sat, Oct 2, 2027She Dreams Bigger - Women's Run - 1 MILE Maryland Heights, MOFrom $70Details Sun, Oct 3, 2027Golden Harvest Half Marathon & 5K/10K - Kansas City Parkville, MOFrom $48Details Sun, Oct 17, 2027Spooky Sprint - Wichita Kansas City, MOFrom $55Details Sat, Oct 23, 2027Spooky Sprint - St. Louis St. Louis, MOFrom $50Details Sun, Oct 24, 2027Spooky Sprint - Kansas City Kansas City, MOFrom $48Details Sat, Oct 30, 2027Garmin Kansas City Marathon Kansas City, MOFrom $80Details
Common Questions About Running an October Half Marathon in Missouri
What is a good Half Marathon time?
Across the 5 of these October half marathons with published results from past editions, the median finisher ran 2:04:52, and the median winning time was 1:27:22. So anything under 2:04:52 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 October Half Marathon field?
The median one finished 58 runners, across the 5 of these October half marathons 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 3:10:49.