When in December are most 10K races held?
The busiest weekend in California is December 12 and December 13, with 17 of them, 13 of those on Saturday, December 12. Another 4 fall on a weekday, which is worth knowing if you are traveling for one.
Race calendar · December 2026 · California
10K Races in California in December 2026
Every 10K in California in December 2026, all 52 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
What the field actually runs
December 10K Races, By the Numbers
1:07:22Median finish time
39:41Median winning time
62Median field size
19December 10K 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 Nov 12, 2026.
When in December
The December Race Weekends
10K races 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 and Longest-Running
The December 10K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
California 10K Races by City in December
All 10K Runs in California in December
52 total Wed, Dec 2, 2026FRESNO TWILIGHT 10,000M Track Meet Fresno, CAFrom $35Details Fri, Dec 4, 2026The Krampus Cross Country 5K, 10K, or Naughty Nine Miler San Francisco, CAFrom $76Details Sat, Dec 5, 2026Stockton Santa Dash! 5K & 10K Stockton, CAFrom $40Details Sat, Dec 5, 2026Running of the Elves 5k Marysville, CAFrom $30Details Sat, Dec 5, 2026Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run Alameda, CAFrom $70Details Sat, Dec 5, 202616th Annual Reindeer Run/Walk American Canyon, CAFrom $50Details Sat, Dec 5, 2026South Pasadena High School Tiger Run 5K/10K/Cub Run South Pasadena, CAFrom $56Details Sat, Dec 5, 20262026 Jingle Bell Run - Orange County & Inland Empire Anaheim, CAFrom $65Details Sun, Dec 6, 2026Jingle Bell Jog - 5K, 10K, 10-Miler, Half Marathon Long Beach, CAFrom $29Details Sun, Dec 6, 2026Santa Runs Griffith Park Los Angeles, CAFrom $54Details Sun, Dec 6, 2026Merry Miles- 5K, 10K, and Half Marathon Long Beach, CAFrom $49Details Sun, Dec 6, 2026Jingle Bell Dash Kids Dash, 5K, 10K and Half Marathon & Santa Paws Doggie Run Huntington Beach, CAFrom $47Details Sun, Dec 6, 2026Festival Of Lights Run La Jolla, CAFrom $72Details Sat, Dec 12, 2026Santa Claus For A Cause 5K/10K Huntington Beach, CAFrom $46Details Sat, Dec 12, 2026Summit Rock Saratoga, CAFrom $92Details Sat, Dec 12, 2026LASAA Mug Run - LASD Temple Station Temple City, CAFrom $30Details Sat, Dec 12, 2026‘A CHARLIE BROWN CHRISTMAS 5K/10K’ (Los Angeles, CA) Los Angeles, CAFrom $68Details Sat, Dec 12, 2026Pulp Fiction: Royale with Speed 5K, 10K & 13.1 Canoga Park, CAFrom $35Details Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 LOS ANGELES Los Angeles, CAFrom $45Register Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 SACRAMENTO Sacramento, CAFrom $50Register Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 SAN DIEGO San Diego, CAFrom $45Register Sat, Dec 12, 2026Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO San Francisco, CARegistration closedFrom $55View race Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 LOS ANGELES Los Angeles, CAFrom $45Register Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 SACRAMENTO Sacramento, CAFrom $50Register Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 SAN DIEGO San Diego, CAFrom $45Register Sat, Dec 12, 2026Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO San Francisco, CARegistration closedFrom $55View race Sun, Dec 13, 2026Santa Hustle Roseville Roseville, CAFrom $80Details Sun, Dec 13, 2026Santa's Toy Trot - 5K, 10K, Half Marathon Santa Monica, CAFrom $29Details Sun, Dec 13, 2026Winter Runderland 5K, 10K, & Half Marathon. Kids Dash Long Beach, CAFrom $49Details Sun, Dec 13, 2026The Krew Runner's 3rd Annual Santa Con Run Salinas, CAFrom $60Details Sat, Dec 19, 2026Jingle Bell Jog 5k/10k Run-Walk at Dos Vientos Newbury Park, CAFrom $40Details Sat, Dec 19, 2026Woodside Ramble Woodside, CARegistration closedPricing TBADetails Sat, Dec 19, 2026Winter Whirl - 5K, 10K, Half Marathon Fountain Valley, CAFrom $35Details Sat, Dec 19, 2026‘A CHARLIE BROWN CHRISTMAS 5K/10K’ (San Diego, CA) Escondido, CAFrom $60Details Sat, Dec 19, 2026Feliz Navidad Run 5K 10K Half Marathon by Califlow Runs Long Beach, CAFrom $50Details Sat, Dec 19, 2026Venice Beach Holiday Run - 5K 10K Venice, CAFrom $59Details Sat, Dec 19, 202613th Annual Jingle Bell Holiday Run 1-M, 5K and 10K Perris, CAFrom $25Details Sun, Dec 20, 2026Chasing Santa - 5K, 10K, 10-Miler, Half Marathon Long Beach, CAFrom $29Details Sun, Dec 20, 20263rd Annual Santa's Reindeer Run - 5K, 10K, and Half Marathon Huntington Beach, CAFrom $53Details Sun, Dec 20, 2026Next Mile Unwrapped 2026 Roseville, CAFrom $45Details Fri, Dec 25, 2026Jingle All the Way - Christmas Day 5K, 10K, Half Marathon, Kids Dash Long Beach, CAFrom $49Details Sat, Dec 26, 2026Ring Out the Old - 5K, 10K, Half Marathon Encino, CAFrom $35Details Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 LOS ANGELES Los Angeles, CAFrom $42Register Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 SACRAMENTO Sacramento, CAFrom $45Register Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 SAN DIEGO San Diego, CAFrom $45Register Sat, Dec 26, 2026A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO San Mateo, CAFrom $50Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 LOS ANGELES Los Angeles, CAFrom $42Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 SACRAMENTO Sacramento, CAFrom $45Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 SAN DIEGO San Diego, CAFrom $45Register Sat, Dec 26, 2026New Year's Run 5K/10K/13.1 SAN FRANCISCO San Mateo, CAFrom $50Register Sun, Dec 27, 2026Countdown to the Finish - 5K, 10K, 10-Miler, Half Marathon Long Beach, CAFrom $29Details Thu, Dec 31, 2026Last Dash Before Midnight 5K, 10K, & Half Marathon Long Beach, CAFrom $43Details
Common Questions About Running a December 10K in California
What is a good 10K time?
Across the 19 of these December 10K races with published results from past editions, the median finisher ran 1:07:22, and the median winning time was 39:41. So anything under 1:07:22 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 December 10K field?
The median one finished 62 runners, across the 19 of these December 10K 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 2:04:23.
Are there trail 10K races in California in December?
Yes, 2 races around California get you off the pavement: 2 mix road and trail.