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Miwok 100K
Coastal Marin Headlands trail ultra from Stinson Beach
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OC Marathon
A Boston-qualifier along Newport Beach's coast
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Avenue of the Giants Marathon
Beneath ancient redwoods on the Avenue of the Giants
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5inco De Miles
Along San Diego Bay at Chula Vista Bayfront Park
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Beer City Half™ Sacramento
Crosses the historic Tower Bridge into Sacramento
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Quicksilver Endurance Runs
Steep former mercury-mine trails above San Jose
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Singletrack Stampede
Switchbacks and singletrack on the Millennium Loop Trail
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Santa Barbara Wine Country Half Marathon
Half marathon through Santa Ynez wine country
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Born to Run Ultra Marathons
A trail ultra through the Santa Ynez wine country
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La Jolla Shores 5K
Downhill 5K from La Jolla Shores to the Cove
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Bay to Breakers
Running since 1912, from the Bay to the Pacific
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Bishop High Sierra Ultras
Runs beneath the Sierra Nevada's eastern escarpment
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Beer City Half™ San Jose
Starts and finishes at Almaden Lake Park, San Jose
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Mount Wilson Trail Race
One of America's oldest trail races, since 1908
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Angels 5K & Fun Run
Loops around Angel Stadium, home of MLB's Angels
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Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
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.