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Chanoko 31K, 10K and 5K trail runs
Along Folsom Lake's Granite Beach shoreline
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LA 5K
Elysian Park to Dodger Stadium in LA
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Ruff Run
Bayfront fun run at Coronado's Tidelands Park
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San Joaquin River Trail Half Marathon & 10k
90% single-track trail through Sierra foothills
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2026 Greater Sacramento Area Polar Plunge & Runs
5K trail run through Folsom Lake's Browns Ravine
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5th Annual Lemon Zest 5K & 1K Kid's Dash
5K celebrating Upland's citrus-growing heritage
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Race to the Top of Mt Umunhum
Half marathon climbing to the summit of exclusive Mt Umunhum
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blossom 2.0
A spring fun run through California citrus country
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Way Too Cool 50K
Legendary trail fifty K with rolling hills and creek crossings
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Big Bunny 5K
Streets of Cupertino, finishing at the Civic Center
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NorCal John Frank Memorial Run
Ten miles along the Sacramento River crossing two iconic bridges
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Tesoro Viejo Spring Classic Half Marathon
Rolling hills through meadows and wetland preserves
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THE LIVERMORE VALLEY HALF & 5K
Through Livermore Valley's vineyards and olive groves
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43rd Annual Run Through Redlands
Past Redlands' historic orange groves and citrus estates
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Napa Valley Marathon
Gradual vineyard downhill built for chasing a Boston qualifier
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Los Angeles Marathon
Stadium to the stars, Dodger Stadium to Century City
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Chinatown YMCA Lunar New Year Run
Winds through San Francisco's historic Chinatown
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San Diego Leprechaun Run
Pacific Beach streets finishing under a rainbow arch
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Marin Ultra Challenge
The premier long trail race in Marin County, steep and scenic
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Mojave Half Marathon
Runs aboard a Marine Corps base in the high desert
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The Rattlesnake Ramble 5K/10K/Half Marathon (live or virtual)
Technical singletrack through China Camp State Park
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Old West 50K
High desert trail race in San Diego's backcountry
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Catalina Island Marathon, 10K and 5K
Californias oldest trail marathon with sweeping island ocean views
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Santa Barbara Nine Trails
Crosses nine legendary trails above Santa Barbara
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SHAY Boba Run 5K
Finish-line boba from Sharetea after this 5K
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Beer City Half™ San Diego
Along Mission Bay's Tecolote Shores
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The San Jacinto Fun Run 5K
A free, inclusive run for students of all abilities
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Pi Day Run
Runners cover Pi miles for a CSU Fresno scholarship
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Moonlight Beach Half Marathon
Half marathon along the Pacific Ocean and lagoon views in Encinitas
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FOGGY BOTTOM MILK RUN
Flat and fast through Ferndale's dairy farmland
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Long Beach Leprechaun Run
Scenic waterfront run along the Long Beach shoreline
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Shamrock'n Half Marathon
Half marathon finishing on the field at Sutter Health Park
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St Patrick's Day Run
10th annual Fresno run with green beer at the finish
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REACH Foundation Shamrock 'n Run
5K, 2K and obstacles at Yorba Regional Park
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Fields of Luck 5K
Run through the iconic blooming Flower Fields near San Diego
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Lake Norconian 5K Run/Walk
Loops around Lake Norconian from Norco College
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Rockin' Shamrock 5k, 10k, 15k, Half Marathon
Loops through the Sepulveda Basin's Woodley Park
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Folsom Lake Southside Trail Run
Rugged lakeside trails with stunning views of Folsom Lake
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St. Patrick's Day 5K
Downtown Santa Rosa 5K hosted by Fleet Feet
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Hill Canyon Trail Trot 5k
Trail along the creek through oak-lined Hill Canyon
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Redwood (Spring) Trail Run
Ridge trails through Oakland's old-growth redwoods
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Signal Hill Rotary Mutt Run
Dogs and runners share the shoreline at Rosie's Dog Beach
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Pioneertown 10K & Half Marathon
High desert route below the Sawtooth Mountains
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Spring Equinox 5k, 10k, 15k, Half Marathon
Flat paved path near the Long Beach shore
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The Big Alta
World-class trail racing through scenic Marin County wilderness
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Ella's Race
Loops SoCal's largest reservoir, Diamond Valley Lake
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The Mighty Dog Trail Runs
Trail race where dogs are welcome to run too
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2026 Bay Area 5K & Polar Plunge
A 5K on Alameda's shore, then a plunge into the Bay
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Napa Valley Trail Marathon
Wine country single-track past streams, hills, and hidden rocks
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Beer City Half™ Long Beach
Beachfront racing with a craft-beer festival finish
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Oakland Marathon
Runs onto the closed San Francisco Bay Bridge
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Coast to Crest 10K and 5K
Dirt trails above the San Dieguito Lagoon
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Western Pacific
Gravel rail-trail laid for the Transcontinental Railroad
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Knickerbocker Canyon
Rugged canyon climbs along the historic Western States Trail
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Folsom Lake Falcon Crest Trail Run
Singletrack oak trails paralleling Folsom Lake
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.