When in December are most half marathons held?
The busiest weekend in Missouri is December 12 and December 13, with 3 of them. Every one of them is on a Saturday or a Sunday.
Race calendar · December 2026 · Missouri
Half Marathons in Missouri in December 2026
Every Half Marathon in Missouri in December 2026, all 8 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
When in December
The December Race Weekends
Half marathons 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 Biggest Field
The largest field of any December Half Marathon in Missouri, from the most recent published results.
Missouri Half Marathons by City in December
All Half Marathons in Missouri in December
8 total Sat, Dec 5, 2026Holiday 5K, 10K, & 13.1M at Kansas City, MO (49) Kansas City, MOFrom $65Register Sat, Dec 12, 2026Holiday 5K, 10K, & 13.1M at Branson, MO (50) Branson, MOFrom $65Register Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 KANSAS CITY Kansas City, MOFrom $45Register Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 KANSAS CITY Kansas City, MOFrom $45Register Sat, Dec 19, 2026OMRR's Run for the Ranch Springfield, MOFrom $75Details Sat, Dec 26, 2026Holiday 5K, 10K, & 13.1M at Kansas City, MO (52) Kansas City, MOFrom $65Register Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 KANSAS CITY Kansas City, MOFrom $45Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 KANSAS CITY Kansas City, MOFrom $45Register