Running races in California in Dec 2026

9 races in date order

High Desert 50K & 30K
Sat 5 Dec · Ridgecrest, CA · 50K · 30K · 10K
High Mojave Desert ultra near Ridgecrest

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Ray Miller 50/50
Sat 5 Dec · Malibu, CA · 50 Mile · 50K · 30K
Backbone Trail through Point Mugu, ocean views

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California International Marathon
Sun 6 Dec · Sacramento, CA · Marathon
Net downhill Sacramento classic built for fast times

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Dixon Lake Trail Runs
Sat 12 Dec · Escondido, CA · 10 Mile · 10K · 5K
Trail loops around Escondido's Dixon Lake

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Santa Monica-Venice Christmas Run
Sat 12 Dec · Santa Monica, CA · 10K · 5K
49th annual run along Santa Monica and Venice Beach

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Ontario 5K Reindeer Run
Sat 12 Dec · Ontario, CA · 5K

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Santa to the Sea
Sun 13 Dec · Oxnard, CA · Half Marathon · Quarter Marathon · 5K · Kids 1K
Finishes near the Pacific in coastal Oxnard

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LASAA Mug Run - LASD Homicide Bureau
Sat 19 Dec · El Monte, CA · 10K · 5K

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Holly Jolly Marathon
Sun 20 Dec · Camarillo, CA · Marathon · Half Marathon · 10K · 5K

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← California Oct Nov Jan 2027 Feb 2027 Mar 2027 Apr 2027 May 2027 Jun 2027 Jul 2027 Aug 2027 Sep 2027 Oct 2027

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Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.