Race calendar · December 2026 · Illinois

Half Marathons in Illinois in December 2026

Every Half Marathon in Illinois in December 2026, all 6 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.

5K Races in December10K Races in DecemberMarathons in IllinoisUltramarathons in IllinoisChristmas 5Ks and Races in IllinoisNew Year's 5Ks and Races in Illinois

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.

  1. Dec 12 - Dec 132
  2. Dec 26 - Dec 273

Illinois Half Marathons by City in December

Chicago 4Elk Grove Village 1N/a 1
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All Half Marathons in Illinois in December

6 total
Tue, Dec 1, 2026Santa Hustle Virtual N/A, ILMarathonHalf Marathon10K5KFrom $110Details Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 CHICAGO/EVANSTON Chicago, IL5K10KHalf Marathon1 MileFrom $65Register Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 CHICAGO/EVANSTON Chicago, IL5K10KHalf Marathon1 MileFrom $60Register Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 CHICAGO/EVANSTON Chicago, IL5K10KHalf Marathon1 MileFrom $60Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 CHICAGO/EVANSTON Chicago, IL5K10KHalf Marathon1 MileFrom $60Register Sun, Dec 27, 2026WARRIOR RUSH: Wrath of Boreas 5K - 10K - Half Marathon 13.1 Elk Grove Village, IL5K10KHalf MarathonFrom $65Details

Common Questions About Running a December Half Marathon in Illinois

When in December are most half marathons held?

The busiest weekend in Illinois is December 26 and December 27, with 3 of them, 2 of those on Saturday, December 26. One more falls on a weekday, which is worth knowing if you are traveling for it.

Half Marathons in Other Months

JanuaryFebruaryMarchAprilMayNovember