California · Trail
Trail Races in California
California currently has 55 upcoming trail races with a confirmed date listed in RaceRove. Escondido, Castro Valley, Napa and Auburn have the most.
Among them, 26 offer a 5K, 37 a 10K, 22 a half marathon, 11 a marathon and 32 an ultra distance (50K and beyond, or a timed race). An event with several distances counts once for each.
November (10), May (8) and December (8) are the busiest months for trail races here. Another 33 annual trail races are waiting for next year's date to be announced.
This page is the same for everyone, so it can't know where you are. Open the race search from here, which starts with California's trail races, and set its Near filter to your city to keep only the ones around you.
- Upcoming, date confirmed
- 55
- Active listings
- 88
- Cities with trail races
- 64
Upcoming trail races in California
All 55 with a confirmed date, soonest first.
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Mermaid Trail RunWoodside, CA3 Miles6 Hour Challenge (2 Person RELAY - Price per person)6 Hour Challenge (Individual)6 Miles +2 more
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SoCalUltraTrail at Tejon RanchLebec, CA100k Ultra Trail50k Ultra Trail25k Trail11k Trail ~45 runners
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest trail races in California
By estimated field size across all distances at the event.
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Fleet Feet Fall Classic - Trail October 18thChico, CA Usually held in October · next date not announced5K4 Miles ~1,440 runners
Trail ultramarathons in California
Trail races with a distance of 50K or more, a fixed-time format, or billed as an ultra (the race search's Ultra filter): confirmed dates first, soonest first.
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Mermaid Trail RunWoodside, CA3 Miles6 Hour Challenge (2 Person RELAY - Price per person)6 Hour Challenge (Individual)6 Miles +2 more
When trail races happen in California
- January
- 6 upcoming trail races
- February
- 6 upcoming trail races
- March
- 4 upcoming trail races
- April
- 3 upcoming trail races
- May
- 8 upcoming trail races
- June
- 2 upcoming trail races
- August
- 2 upcoming trail races
- October
- 6 upcoming trail races
- November
- 10 upcoming trail races
- December
- 8 upcoming trail races
California cities with the most trail races
- Escondido
- 4 upcoming trail races
- Castro Valley
- 3 upcoming trail races
- Napa
- 3 upcoming trail races
- Auburn
- 2 upcoming trail races
- Oakland
- 2 upcoming trail races
- San Diego
- 2 upcoming trail races
- Woodside
- 2 upcoming trail races
- Friant
- 2 upcoming trail races
Annual trail races awaiting their next date
These trail races are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
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Fleet Feet Fall Classic - Trail October 18thChico, CA Usually held in October · next date not announced5K4 Miles ~1,440 runners
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Champion Mine Trail RaceNevada City, CA Usually held in October · next date not announced5K10K ~520 runners
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Rodeo Valley Trail RunSausilto, CA Usually held in August · next date not announced31 Miles18.6 Miles13.2 Miles4.8 Miles ~350 runners
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Big Sur Trail Marathon, Half Marathon & 5 MileBig Sur, CA Usually held in September · next date not announced5 Mile - Adult5 Mile - YouthHalf Marathon - AdultHalf Marathon - Youth +2 more ~300 runners
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Carmel Valley Trail RaceSan Diego, CA Usually held in October · next date not announced10 Mile10K5K ~300 runners
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Oakland Hills Trail RunOakland, CA Usually held in October · next date not announced35K1/2 Marathon10K ~300 runners
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Reservoir Dogs Trail RunOrinda, CA Usually held in October · next date not announced35K1/2 Marathon10K5K ~300 runners
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The Bulldog UltraCalabasas, CA Usually held in August · next date not announced50k Ultra Trail25k Trail ~252 runners
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Ely Mountain Trail RaceShaver Lake, CA Usually held in August · next date not announced8.7 Miles4.97 Miles ~250 runners
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Sunset & Cider Trail RacesAuburn, CA Usually held in October · next date not announced50K13 Miler5 Miler ~200 runners
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Acorn Creek Trail RunPilot Hill, CA Usually held in October · next date not announcedHalf Marathon10K ~175 runners
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Trail Run at Sly Park - FallPollock Pines, CA Usually held in October · next date not announced50KTrail Marathon17 MilerHalf Marathon +3 more ~100 runners
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That's No Moon Trail RacesSilverado, CA Usually held in October · next date not announced50 Miler50K30K ~82 runners
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Bandit Ultra TrailLos Angeles (Simi Valley), CA Usually held in September · next date not announced50K30K15K ~75 runners
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Sonoma Fall ClassicHealdsburg, CA Usually held in October · next date not announced100 Mile Sufferfest100 Mile Relay50 Mile RelayLake Sonoma 50 Mile +2 more ~26 runners
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Trail Run at Sly Park - SummerPollock Pines, CA Usually held in August · next date not announced50KMarathon17 Mile1/2 Marathon +3 more ~12 runners
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ARAVAIPA's OC Trail Runners Group RunNewport Coast, CA Usually held in August · next date not announcedGroup Run
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Back On The Ranch Trail RunLos Olivos, CA Usually held in October · next date not announced3 Hour6 Hour12 Hour24 Hour +1 more
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Berkeley Trail AdventureBerkeley, CA Usually held in September · next date not announced50K35K1/2 Marathon10K
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California Gold Rush Trail Run - FallColoma, CA Usually held in October · next date not announcedHalf Marathon15K10K5K +2 more
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Double Peak Challenge 10kSan Marcos, CA Usually held in September · next date not announced10K5KKids Trail Trot
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Kokanee Trail RunsSouth Lake Tahoe, CA Usually held in October · next date not announced1/2 Marathon10K5K1/2 Mile
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Point Mariah Trail MarathonTruckee, CA Usually held in August · next date not announcedMarathonPartner Marathon5-Person Team
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Quicksilver Trail ChallengeSan Jose, CA Usually held in October · next date not announcedHalf Marathon10K
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Riley Park Trail RacesCoto de Caza, CA Usually held in August · next date not announced30kHalf Marathon10 Miler10k +3 more
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Santa Cruz Trail RunFelton, CA Usually held in August · next date not announced18.2 Miles13.2 Miles10K
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Scena Performance Series PassesBerkeley, CA Usually held in September · next date not announcedScena SlamMonsters of the East BayRidge Trail RompPinch to Grown and Inch
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SGRAIL Marin - Triathlon & Trail Half MarathonSan Rafael, CA Usually held in October · next date not announcedHalf Marathon5K
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SPASM Crystal Springs Trail RunWoodside, CA Usually held in August · next date not announced10K5K22 Miles30.9 Miles +2 more
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Thunder Mountain Trail ChallengeKit Carson, CA Usually held in August · next date not announced50K21 Miler10.5 Miler5.6 Miler
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Tierra Redonda Mountain Trail RunBradley, CA Usually held in September · next date not announced48 Hour24 Hour20K10km Trail Run
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Windfall Full Moon Trail RunAlpine, CA Usually held in August · next date not announcedMarathonWindfall Full Moon Trail Run 30KWindfall Full Moon Trail Run 15KWindfall Full Moon Trail Run 1
More ways to browse California
Trail races in nearby states
How RaceRove picks trail races
A race is on these pages when its name, its list of distances or its listing's notes say "trail". That is the rule the Trail filter in RaceRove's race search uses, so a race is a trail race on both or on neither. A race on dirt roads or mountain paths that doesn't call itself a trail race isn't counted, and neither is one whose only mention of a trail is in its description.
Trail races come in every length, from a few miles in a city park to 100 miles in the mountains. Off the road, the same distance usually takes longer: read each race's course description for its climbing, its footing and any cut-off times before you register, and plan your pace from those rather than from a road time.
Mud runs and obstacle races aren't a category of their own in RaceRove; one is on these pages only when its listing says trail. To get ready for one, the obstacle course race training guide covers Spartan, Tough Mudder and mud-run preparation. Thinking about a first ultramarathon? The ultramarathon and trail training plans run from 50K to 100 miles, and the Ultra Classics list gathers the best-known ultras.
Guides from the RaceRove blog
- 9 min read Obstacle Course Race Training: How to Prepare for Spartan Race, Tough Mudder and Mud Runs How OCR training differs from a running plan: building grip strength, upper-body pulling power and running fitness for Spartan Race, Tough Mudder and local mud runs.
- 9 min read Ultramarathon and Trail Training Plans: 50K to 100 Miles How ultra training differs from marathon training, phase-by-phase 50K and 100-mile plans, gear and fueling basics, and how to pick your first ultramarathon.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Trail Races in California: common questions
- How many trail races are there in California?
- RaceRove currently lists 55 upcoming trail races in California with a confirmed date, plus 33 annual trail races whose next date hasn't been announced yet.
- What counts as a trail race on RaceRove?
- A race whose name, list of distances or listing notes say "trail": the same rule as the Trail filter in RaceRove's race search, so a race is a trail race on both or on neither. A race whose only mention of a trail is in its description isn't counted, and neither is one on dirt roads or mountain paths that doesn't call itself a trail race.
- Which California cities have the most trail races?
- By upcoming trail races listed in RaceRove: Escondido (4), Castro Valley (3), Napa (3), Auburn (2) and Oakland (2).
- When is trail race season in California?
- Of the upcoming trail races listed, the busiest months are November (10), May (8) and December (8).
- What is the biggest trail race in California?
- By estimated field size, the largest trail race listed in California is the Napa Valley Marathon, with about 6,000 runners across all of its distances.
- Are there trail ultramarathons in California?
- Yes: 32 upcoming trail races in California with a distance of 50K or more, a fixed-time format, or billed as an ultra (the race search's Ultra filter).
- How do I find trail runs near me in California?
- Open the race search from this page: it starts with California's trail races. Set its Near filter to your city and how far you'll travel, and only the ones around you are left. This page can't see where you are.
Search every trail race in California
The race search with this state and its Trail filter on: set Near to your city and a radius, then narrow by month, distance and field size.