When in December are most half marathons held?
The busiest weekend in Arizona is December 12 and December 13, with 3 of them, 2 of those on Saturday, December 12. Another 2 fall on a weekday, which is worth knowing if you are traveling for one.
Race calendar · December 2026 · Arizona
Half Marathons in Arizona in December 2026
Every Half Marathon in Arizona in December 2026, all 9 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 Arizona, from the most recent published results.
Arizona Half Marathons by City in December
All Half Marathons in Arizona in December
9 total Thu, Dec 3, 2026Four Corners Quad Keyah Teec Nos Pos, AZFrom $120Details Sat, Dec 5, 2026Holiday 5K, 10K & 13.1M at Phoenix, AZ (49) Phoenix, AZFrom $65Register Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 PHOENIX Phoenix, AZFrom $60Register Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 PHOENIX Phoenix, AZFrom $60Register Sun, Dec 13, 2026Santa Hustle Glendale Glendale, AZFrom $110Details Sat, Dec 19, 2026Holiday 5K,10K & 13.1M at Tucson, AZ (51) Tucson, AZFrom $65Register Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 PHOENIX Phoenix, AZFrom $65Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 PHOENIX Phoenix, AZFrom $65Register Thu, Dec 31, 2026#RUNMARANA Egg Nog Jog and Kid’s Free FUN Run Marana, AZFrom $35Details
Common Questions About Running a December Half Marathon in Arizona
Are there trail half marathons in Arizona in December?
Yes, one race around Arizona gets you off the pavement: 1 is a trail race.