Ultramarathons in California

Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. In California, there are a couple of city-based ultramarathons, but most ultras make the most of the Golden State's stunning scenery and landscapes, such as its coastlines, National Parks, mountains, and deserts. With ultra races taking such a long time complete, these views provide a welcome distraction for runners. The Western States 100-mile Endurance Race is known as one of the most beautiful events, and for the truly fearless, the Badwater Ultramarathon travels a distance of 135 miles through Death Valley.
Showing 1 - 48 of 80 events
View on map
  • JUL26

    The San Francisco Marathon

    San Francisco, CA, United States

    The San Francisco Marathon is proud to present its 43rd running on July 26th, 2019. 26,000 runners and over 80,000 spectators will fill the city on race...

    $49 - $409
    • Running
    • Marathon
    • Ultramarathon
    • 5k
    • Half Marathon
  • NOV9

    Mt Tam Trail Run

    Stinson Beach, CA, United States

    Mt. Tamalpais is the dominating feature in Marin County. Any true trail runner who sees it wants to run up it. Heres your chance. Our Mt. Tam Trail Run...

    $50 - $80
    • Running
    • Ultramarathon
    • 10k
    • Half Marathon
  • JAN4

    La Cuesta Ranch Trail Run

    San Luis Obispo, CA, United States

    La Cuesta Ranch Trail Run presented by Running Warehouse of San Luis Obispo. The race will take place on Saturday, January 5th at the gorgeous La Cuesta...

    $55 - $75
    • Running
    • Ultramarathon
    • 10k
  • OCT5

    Back on the Ranch Trail Run and Campout

    Santa Maria, CA, United States

    Welcome to the Second Annual Back On the Ranch Trail Run and Campout!

    Complete as many laps as possible within the allotted 3, 6, 12, 24 and 48 hour...

    $20
    • Running
    • Ultramarathon
    • 5k
  • OCT11

    Lake Tahoe Marathon

    Tahoe City, CA, United States
    • Running
    • Marathon
    • Ultramarathon
    • Half Marathon
    • 5k
    • 10k
  • NOV9

    Chino Hills Spring Trail Series 50K & 30K

    Brea, CA, United States

    The Chino Hills Trail Run Series is a perfect way to take the first step into the exciting world of trail running. Join us and explore one of Orange...

    • Running
    • Ultramarathon
  • NOV15

    Southwest Series Day 6 - CA

    San Bernardino County, CA, United States
    $35 - $115
    • Running
    • Marathon
    • Half Marathon
    • 10k
    • 5k
    • Ultramarathon
  • MAY2

    Miwok 100K

    Stinson Beach, CA, United States

    The Miwok 100K is one of the most beautiful and iconic ultra marathons in the United States. The course is hilly (11,800 feet of gain), with spectacular...

    • Running
    • Ultramarathon
  • NOV16

    Valley of Fire Backcountry

    Las Vegas, NV, United States

    Stunning course in the Mojave Desert's color country! Run the backcountry trails of Valley of Fire State Park and get up close and personal with...

    $40
    • Running
    • 5k
    • Half Marathon
    • 10k
    • Ultramarathon
  • NOV23

    No Name 5030 Trail Races

    Agoura Hills, CA, United States

    CHALLENGE YOURSELF. GO THE...

    • Running
    • 10k
    • Ultramarathon
  • NOV9

    Lake Chabot

    Castro Valley, CA, United States

    The course starts at the Marina and travels around the popular Lake Chabot reservoir and surrounding hills. Great course for first-time trail...

    $45 - $75
    • Running
    • Ultramarathon
    • Half Marathon
  • MAR21

    Labor Of Love 50 M 50 K Marathon 1 2 10 K And 5 K

    Las Vegas, NV, United States
    • Running
    • Ultramarathon
    • Half Marathon
    • 10k
    • 5k
  • OCT26

    Spartan Race So Cal

    Lebec, CA, United States
    • Obstacle
    • Running
    • Ultramarathon
    • 5k
    • 10k
  • FEB1

    Ordnance 100

    Salinas, CA, United States
    • Running
    • Ultramarathon
  • APR25

    Rodeo Beach Rumble

    Sausalito, CA, United States

    So close to San Francisco and the Golden Gate Bridge yet a world apart, the hills, valleys and beaches of the Golden Gate National Recreation Area are the...

    • Running
    • Half Marathon
    • Ultramarathon
  • AUG1

    Angeles Crest 100 mile endurance run

    Wrightwood, CA, United States

    The San Gabriel back country retains much of the natural beauty, if not the primitive wilderness of yesteryear... Thanks largely to the foresight and...

    • Running
    • Ultramarathon
  • AUG1

    E T Full Moon Midnight Marathon 1 2 10 K 51 K

    Alamo, NV, United States
    • Running
    • Ultramarathon
    • Half Marathon
    • 10k
    • 5k
  • NOV9

    Feat to the Beach 200 Mile Relay

    Fresno, CA, United States

    From the central valley to the sea, the Feat to the Beach Relay will provide you with 200+ miles of great memories. Your finish line will be right on the...

    • Running
    • Ultramarathon
  • AUG22

    The Castle Peak 100K

    Truckee, CA, United States

    The Castle Peak 100k is arguably one of the most difficult trail races in the country. Masked by its spectacular beauty, this is a true mountain race unlike...

    • Running
    • Ultramarathon
  • OCT12

    HIGHLANDER 100 There Can Be Only 1

    Mount Baldy, CA, United States
    • Running
    • Ultramarathon
  • OCT12

    Bizz Johnson 50 Km, Marathon, Half Marathon & 10 Km

    Susanville, CA, United States
    • Running
    • Half Marathon
    • Ultramarathon
    • Marathon
    • 10k
  • JAN11

    Avalon 50K/50M Benefit Run

    Avalon, CA, United States

    The Avalon Benefit 50 Mile/50K Run is the oldest Ultra Trail Run in California with the 50 Mile run entering its 39th year. The 50K joined the party three...

    $85 - $110
    • Running
    • Ultramarathon
  • DEC7

    Spooner's Cove

    Baywood-Los Osos, CA, United States

    Enjoy views of rugged cliffs, sandy beaches and vast expanse of the ocean at the "Mountain of Gold". The 8K course has minimal climbing and runs...

    $30 - $70
    • Running
    • Ultramarathon
  • DEC1

    OTHTC High Desert 50K Ultra & 30K

    Ridgecrest, CA, United States

    Come join us in the northern Mojave Desert, as we host the High Desert Ultra in its 34th year! Enjoy great views of the southern Sierras and the Indian...

    $65
    • Running
    • Ultramarathon
  • MAY16

    PCT 50

    San Diego, CA, United States

    Join us as we run 50 miles via the single-track Pacific Crest Trail in the Cleveland National Forest. The run starts at an elevation of 3,000 feet and...

    • Running
    • Ultramarathon
  • FEB1

    Fort Ord Trail Run

    Salinas, CA, United States
    • Running
    • 10k
    • Ultramarathon
  • JUL18

    Tahoe Rim Trail Endurance runs

    Carson City, NV, United States

    The Tahoe Rim Trail 100 Mile Endurance Run will be run on single-track trails and dirt roads within Spooner State Park and on the Tahoe Rim Trail located...

    • Running
    • Ultramarathon
  • JUL18

    Run the Peak - Peak Mountain Marathon

    Julian, CA, United States

    If you love the mountains, the challenge of a good, long climb and quad-pounding descents, then The Peak is for you. Running mostly along single track...

    • Running
    • Half Marathon
    • Ultramarathon
  • APR18

    Folsom Lake Trail Run

    Pilot Hill, CA, United States
    • Running
    • Ultramarathon
    • 10k
  • MAR7

    Trail Trashed Ultra

    Las Vegas, NV, United States
    • Running
    • Ultramarathon
    • Half Marathon
    • 10k
    • 5k
  • FEB15

    Jackpot Ultra Running Festival

    Las Vegas, NV, United States

    Bet Big, Run Long. Produced by Beyond Limits Running, the 7th Annual Jackpot Ultra Running Festival takes place on Presidents' Weekend (February 14-16)...

    $105 - $199
    • Running
    • Ultramarathon
  • APR27

    Badwater Salton Sea

    Thermal, CA, United States

    This remarkable event challenges up to 40 teams of two or three ultrarunners running together as duos or trios for the duration, NOT in a relay to tackle...

    • Running
    • Ultramarathon
  • OCT26

    SLO Ultra at Wild Cherry Canyon

    San Luis Obispo, CA, United States
    • Running
    • Ultramarathon
    • Half Marathon
    • 5k
  • NOV2

    Rio Del Lago 100

    Granite Bay, CA, United States
    • Running
    • Ultramarathon
  • NOV16

    The North Face Endurance Challenge California

    Sausalito, CA, United States

    Located in the visually stunning Marin Headlands, The North Face Endurance Challenge Championship course engages runners with both scenic views and drastic...

    $50 - $130
    • Running
    • Ultramarathon
    • Marathon
    • Half Marathon
    • 10k
    • 5k
  • APR11

    Oriflamme 50k

    Julian, CA, United States

    Come watch the sunrise over the desert and then run down into it. It's a 50K with a little bit of everything... single track along the Pacific Crest...

    • Running
    • Ultramarathon
  • NOV14

    Southwest Series Day 5 - NV

    Laughlin, NV, United States
    • Running
    • 10k
    • 5k
    • Half Marathon
    • Marathon
    • Ultramarathon
  • OCT12

    Ruth Anderson Memorial Endurance Run

    San Francisco, CA, United States
    $85
    • Running
    • Ultramarathon
  • JUN6

    The Loco Go Big or Go Home Challenge

    Butte Meadows, CA, United States
    • Running
    • 10k
    • Ultramarathon
    • Half Marathon
  • MAR21

    Labor of Love Races

    Las Vegas, NV, United States

    Commencing at an elevation of roughly 4500 feet, runners will experience high desert vegetation to include Joshua Trees, Pinion-Juniper, Mountain Rose,...

    $35 - $90
    • Running
    • 5k
    • 10k
    • Half Marathon
    • Ultramarathon
  • NOV30

    Quad Dipsea

    Mill Valley, CA, United States

    Stairs, hills, and more hills. About 9,000 feet of vertical packed into 28 miles. It begins at 7:30AM at Old Mill Park (Throckmorton Avenue, Cascade Way,...

    • Running
    • Ultramarathon
  • JAN26

    Calico Trail Run

    Yermo, CA, United States
    • Running
    • Ultramarathon
  • MAR14

    Griffith Park Trail Marathon

    Los Angeles, CA, United States
    • Running
    • Ultramarathon
    • Half Marathon
  • OCT25

    Reebok Ragnar Road Napa Valley

    San Francisco, CA, United States

    Its time to drink in the endless views of wine country at Reebok Ragnar Road Napa Valley.

    In previous years, registration has been lottery-style. But...

    $540 - $1,960
    • Running
    • Ultramarathon
  • APR11

    Silver Moon Race

    Reedley, CA, United States

    Discover the beauty of central California while running a 6, 12, 24-hour or 100-mile race, run through scenic farm orchards, under the canopy of oak trees,...

    • Running
    • Ultramarathon
  • NOV8

    Ragnar Trail Los Coyotes

    Warner Springs, CA, United States
    • Running
    • Ultramarathon
  • JUN6

    Sawmill Relay

    Las Vegas, NV, United States

    Taking place in the Humbolt-Toiyabe National Forest, this will be an epic adventure you don't want to miss! Bristlecone Events and Triple Dare Running...

    • Running
    • Ultramarathon
    • 10k
    • Half Marathon
  • JUN13

    DeCelle Memorial Lake Tahoe Relay

    South Lake Tahoe, CA, United States
    • Running
    • Ultramarathon
Why book with Let's Do This
  • Official booking partner
  • Best price guarantee
  • Free cancellation protection