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San Diego is home to some of the best 5K, 10K and half marathons! Check out the full San Diego Running Calendar.

Looking for the best races in San Diego, California? Browse our list of San Diego marathons, half marathons, 10K races, 5K races and more, including upcoming races and races up to one …

San Diego is one of our favorite cities in the world for running. The combination of great weather, varied & scenic geography from harbor to runnable beaches to inland canyons, and an …

2 days ago · Find running, triathlon and cycling races in San Diego, California. San Diego is the birthplace of triathlon and holds some of the most iconic landscapes in the sport of running.

Find running races in San Diego, CA. San Diego is a beautiful place for races year-round from 5k, 10k, half marathon and marathon distances to fun runs and more.

Discover the most comprehensive calendar of running races near San Diego, CA, including 5Ks, 10Ks, half marathons, and marathons in 2025-2026. Find and join your next race today!

4 days ago · Find runs and races near you with our San Diego, CA running calendar. Find your next 5K, 10K, half marathon, road race, trail run, marathon, ultra, and everything in between.

Jul 12, 2025 · Faith Kipyegon took on the Breaking4 attempt in Paris to become the first woman to ever run a sub-four minute mile. The London Marathon Ballot Results 2026: Are You In? The …

Whether you’re a repeat marathoner or working up to conquering your first mile, Runner’s World is your go-to source for all things training, nutrition, and gear to ensure you’re running at your...