When in January are most 5K races held?
The busiest weekend in Arizona is January 30 and January 31, with 5 5K races on those two days, and the single busiest day is Saturday, January 30 with 4. Every one of them is on a Saturday or a Sunday.
Race calendar · January 2027 · Arizona
January 2027 5K Races in Arizona
Every 5K in Arizona in January 2027, all 10 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
10 5K races in January 2027
What the field actually runs
January 5K Races, By the Numbers
36:54Median finish time
18:21Median winning time
93Median field size
5January 5K races 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 Sep 22, 2026.
When in January
The January Race Weekends
5K races do not spread evenly across January. The busiest weekend is January 30 and January 31, with 5 of them.
By the numbers
The Biggest and Longest-Running
The January 5K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
January 5K Races by City
Soonest 5K Races in January
10 total Sat, Jan 9, 2027Chilly Willy 5K/10K/Half Marathon - Tucson Tucson, AZFrom $30Details Sun, Jan 10, 2027Chilly Willy 5K/10K/Half Marathon - Phoenix Phoenix, AZFrom $30Details Sat, Jan 16, 2027MLK Jr. Freedom Run 5K/10K/13.1 PHOENIX Phoenix, AZFrom $30Register Sat, Jan 16, 2027Sunrise Marathon 5K/10K/13.1 PHOENIX Phoenix, AZFrom $30Register Sat, Jan 23, 2027Empire Ranch Trail Run Sonoita, AZFrom $5Details Sat, Jan 30, 2027PVSchools Community 5K Fun Run/Walk Scottsdale, AZFrom $10Details Sat, Jan 30, 2027Freakin Freezin 5K - Flagstaff Flagstaff, AZFrom $30Details Sat, Jan 30, 2027Coffee Lover Run PHOENIX Phoenix, AZFrom $30Register Sat, Jan 30, 2027Run for Donut PHOENIX Phoenix, AZFrom $30Register Sun, Jan 31, 2027Freakin Freezin 5K - Phoenix Glendale, AZFrom $30Details
Common Questions About Running a January 5K in Arizona
When should I sign up for a January 5K?
As early as you can. 4 of these January 5K races already have a price increase on the calendar, and 10 are open for entry right now.
How much does a January 5K cost to enter?
The typical entry is $30, with paid entries running from $5 up to $30. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
What is a good 5K time?
Across the 5 of these January 5K races with published results from past editions, the median finisher ran 36:54, and the median winning time was 18:21. So anything under 36:54 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 January 5K field?
The median one finished 93 runners, across the 5 of these January 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 1:23:23.
Are there trail 5K races in Arizona in January?
Yes, one race around Arizona gets you off the pavement: 1 is a trail race. Surfaces are not always published, so it is worth checking a specific race before you register.
5K Races in Other Months
December and February sit either side of January, which is where most people look next when a date does not fit.