Pacifica Foothills Trail Run
Jan 23, 2027Pacifica, CA30K, Half Marathon +1
Half Marathon, 8 weeks before race day, 31 mi away
At a glance
- Date
- Mar 19–21, 2027
- Location
- Marinwood, California
- Distances
- 50K
- Registration
- Open until Mar 14, 2027, via ultrasignup.com
Listed from UltraSignup. Checked Oct 18, 2026.
Plan this race for free
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
A collaborative trail running event from Freetrail and Daybreak Racing in trail-famous Marin County, California, offering three race distances with scenic courses that summit many of the highest points in Marin County.
Key dates
Registration opens
Sep 14, 2026
Early ends
Sep 30, 2026
Registration closes
Mar 14, 2027
Race day
Mar 19, 2027
Pricing
100K
Regular
$340
50K
Regular
$205
28K
Regular
$160
Email me updates about The Big Alta
Registration openings and major changes, like a new date or a cancellation.
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Tune-up races
Folsom Lake Trail Run
Jan 23, 2027Folsom, CA50K, Marathon +5
Half Marathon, 8 weeks before race day, 87 mi away
Folsom Lake Sweetwater Trail Run
Jan 23, 2027Folsom, CA38 mi, 50K +6
Half Marathon, 8 weeks before race day, 97 mi away
Straight-line distance
Similar races
Lake Sonoma 100K, 50K & TS Half
Apr 10, 2027Healdsburg, CA100K, 50K +1
Also 50K, 53 mi from The Big Alta
Thunder River
Oct 31Cascade Locks, OR50K, 25K
Also 50K, by Freetrail and Daybreak Racing, registration open
Mendocino Coast 50K
Apr 17, 2027Mendocino, CA50K
Also 50K, 110 mi from The Big Alta, registration opens Nov 7
Straight-line distance
More 50K Races in California
All 50K Races in CaliforniaIsland View - Endurance Run
Oct 24Goleta, CA100 mi, 100K +1
No Name Trail Races
Oct 24Agoura, CA50K, Half Marathon +1
Range of Light Trail Races
Oct 24Bishop, CA50K, 33K +2
Trail Run at Sly Park - Fall
Oct 24Pollock Pines, CA50K, Marathon +3
Caspers Trail Races
Oct 31San Juan Capistrano, CA50K, Marathon +3
Chino Hills Trail Run Series Fall
Nov 7Brea, CA50K, 30K
Lake Chabot Trail Run
Nov 7Castro Valley, CA50K, Marathon +4
HOKA Pacific Trails California by UTMB
Nov 13Rancho San Fernado Rey, CA50K, 20K
Mind Over Mountains
Nov 14Auburn, CA50K, Half Marathon +2
Griffith Park Trail Marathon
Nov 21Los Angeles, CA50K, Marathon +3
Quad Dipsea
Nov 28Mill Valley, CA28.4 mi
Calero Trail Run - Winter
Dec 5San Jose, CA50K, Marathon +5
Races Near San Francisco
All races near San FranciscoPeacock Gap Trail Run
Dec 5San Rafael, CA30K, Half Marathon +1
Marin Ultra Challenge
Mar 13, 2027Sausalito, CA50 mi, 50K
Bay Area 100
Jun 12, 2027Berkeley, CA100 mi
Hunter S. Thompson Fear & Loathing
Dec 6San Francisco, CA50 mi, 50K
Ruth Anderson Memorial Endurance Run
Oct 9, 2027San Francisco, CAMarathon
Oakland Hills Trail Run
Oct 24Oakland, CA35K, Half Marathon +1
Napa Wilderness Trail Runs
May 15, 2027Napa, CA50K, 30K +2
Rim Rock 50 Mile Trail Challenge
May 15, 2027Napa, CA50 mi
Haunted Corner 5K, 10K Pleasant Hill
Oct 24Pleasant Hill, CA10K, 5K
Nomadic 5K Trail Run
Nov 21Walnut Creek, CA
Pacifica Foothills Trail Run
Jan 23, 2027Pacifica, CA30K, Half Marathon +1
March Races Nearby
All March racesFCancer Race; Norcal Edition
Mar 7, 2027Middletown, CAHalf Marathon, 10K +1
The Quest! Adventure Run
Mar 13, 2027Auburn, CA12 mi, 6 mi
Rattlesnake Dick
Mar 20, 2027Cool, CA50K, 25K +1
Bad Ass Backyard Ultra
Mar 27, 2027Rio Linda, CABackyard Ultra, 12 hr
Knickerbocker Canyon Trail Run
Mar 27, 2027Auburn, CA35K, Half Marathon +2
Race planning
Plan The Big Alta with Crewable
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for The Big Alta?
Claim this race to manage registration, volunteers, and race day.