Fontana Days Run
Fontana, California, United States
Jun, 2027 (TBD)
5k, Half-marathon
Race Information
The Fontana Days Run is an internationally renowned race recognized by the USATF as the World's Fastest Half Marathon Course since 1985.
The Fontana Days Run is a 13.1-mile Half Marathon that starts in the San Bernardino National Forest at an elevation of 3,800 feet and drops nearly 2,500 feet to the finish line in front of Fontana City Hall. Due to the gradual downward slope of the course, many runners use the Fontana Days Run to improve their personal records or qualify for larger races.
In addition to the Half Marathon, there is a 5K Run, 5K Race Walk, 5K Family Fitness Walk, and a Children's Half Mile Dash that the whole family can participate in.
π Run Pick of the Month: Surf City 10
πHuntington Beach - Sunday September 20, 2026
π Why We Like This Run
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The "PR-Perfect" Course
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Unrivaled Coastal Scenery
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The Post-Race Beach Party
The oldest 10-mile race in the United States, this event is a legendary staple of the Orange County running scene. Whether you're tackling the signature 10-miler, the 10K, or the 5K, youβre in for a high-energy morning that perfectly captures the "Surf City USA" spirit.
From the iconic starting line at the Huntington Beach Pier to the high-fives from volunteers in surf gear, this race is less of a grueling workout and more of a seaside celebration.
π Training for This Race?
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π 2 weeks free for RunGuides runners
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Race Facts
Race Size: 1,000 - 5,000
Course Type: Road
Boston Qualifier: No
Kids Run: Yes
Where to Stay
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