Inside Trail

Inside Trail

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Trail Race Production & Management Company/Trail Running Community

Inside Trail Racing (ITR) was founded to provide a competitive yet amateur-approachable race environment that challenges all abilities and presents the beauty of the varied West Coast trails. With distances from 5K to 100K, we are committed to serving every participant an ambitious, fun, and well-supported trail-running event. Our long-distance events rank amongst the most popular events in the co

08/31/2026

Inside Trail Racing is a running community of inclusion, support and challenges for all abilities.

Whether you are looking for the scenic trails in northern California or wanting to run with an organization that is about comradery, fellowship and runners supporting runners, Inside Trail Racing is the place to be.

Train, Race, Live EX ANIMO!

Photos from Inside Trail's post 08/23/2026

Santa Cruz Trail Run

Yesterday turned into an absolute beauty! Course Records in the women's 10k 🎉

River crossings and speedsters in the half marathon and 30k. This race had it all and everyone out there gave it their all.

Sand, Roots, Singletrack & the mighty Redwoods

Our volunteers really stepped up to support all the runners, can't thank you all enough.

Thank you Fleet Feet Aptos, Skratch Labs, Pickle Juice, GU Energy Labs, Best Day Brewing, Waterloo Sparkling Water, SaltStick, OS1st

📸 Let’s Wander Productions, Jenna Dobson, Joshua Kyle

08/16/2026

We LOVE the running community!

It's not torture, it's joy, love, happiness, community, fun.

It's... one more!

It's also, Napa Lapa Trail Adventure!

The Napa Lapa Trail Adventure - 2026 08/13/2026

What a beautiful day on August 8 Skyline Wilderness Park

Congratulations to every Napa Lapper

1 lap or 15+ laps this was an inspiring day.

Train, Race Live EX ÁNIMO!

The Napa Lapa Trail Adventure - 2026 Inside Trail Racings 2026 edition of the Napa Lapa Trail Adventure...

08/12/2026

Our 2026 edition of the second annual Napa Lapa Trail Adventure.

An endurance event to test the boundaries. We give participants 3, 6 or 12 hours to complete a 4.16 mile loop as many times as possible, then for the final 40 minutes of the duration we open a 0.34 mile loop for emptying out the tank.

Each big loop has 815' of elevation gain (pain). Over a 50k of running (8 big laps) runners get in 6,500'+ of vertical gain (or 7 big laps + 7 small laps)

Small loops are 3x = 1 mile to make easy math

Photos from Inside Trail's post 08/10/2026

The second Annual Napa Lapa Trail Adventure presented by Omen Wine - Atlas Wine Co at Skyline Park Napa was a success!

Runners got in mileage and vert completing loops of 4.16 miles. The day started cool and overcast that quickly burned off by the time the 3 Hour runners were wrapping up their day. Then, the sun and heat came out to treat the 6 Hour and 12 Hour runners.

Don't let the 815' of posted vert fool you, for a 50k that is over 6,500' of vert pain/elevation gain! This Napa Lapa Adventure is no joke!

We had the iTR Rejuvenation Station for runners to cool off in w/ misters & ice buckets. Skratch Labs: Fuel + Hydration & Pickle Juice keeping the rPickle Juiceted holding off the muscle cramps. Spring Energy & JAMBAR CerSpring Energyc EJAMBAR Certified Organic Energy Bard.

Congratulations to all who participated and became a Napa Lapper and to all the crews helping get your friend, partner, sibling, son and daughter through the day.

We had a great day, we hope you all did too! Thank you for trusting us for your trail adventures.

📸: Sacramento Photographer & Sacramento Photographers Let’s Wander Productions

Inside Trail Racing 2026 50/50 Challenge - The Story Behind the Race 08/07/2026

The 50/50 Challenge - The Stories Behind the Race

https://youtu.be/yj-tNBsBIyQ?is=R_h-OWTgTvJzZvGP

Enjoy the journey from Monterey Ultra 50 Miler to Marin Ultra Challenge 50 Miler.

Appreciate The Treadmill & San Francisco Running Company for the early bib pickup. And, everyone who gave input on the experience.

Thank you for your contributions:
Tania Panarello
Kimberly Neely - iTR Race Team Member & 2025 50/50 Challenge Winner
Lisa Mitchell
Max Kam - 2025 50/50 Challenge Winner
Kevin Moore - 2026 50/50 Challenge Winner

2026 50/50 Challenge: Monterey 50 Miler & Marin Ultra Challenge 50 Miler.
Women's Cumulative Time Winner: Jenny Jacox
Men's Cumulative Time Winner: Kevin Moore

Content by Let's Wander Photography, Scott Minard & Inside Trail Racing an Animo Performance LLC trail racing series.

Inside Trail Racing 2026 50/50 Challenge - The Story Behind the Race The stories behind the race. Enjoy the journey from Monterey Ultra ...

08/03/2026

It is Napa Lapa Trail Adventure week!
RUN or VOLUNTEER

A time based endurance event to see how far you can go and how much elevation you can get.

Camp over the weekend

Skratch Labs, Pickle Juice,Waterloo Sparkling Water, SaltStick will keep you hydrated in the heat.

Spring Energy, Skratch labs & Jambar will keep you fueled each lap.

Perfect race to gear up for a desert or vert inducing 100 miler.

Come enjoy the weekend with us!

www.insidetrail.com

www.insidetrail.com/volunteer


Photos from Inside Trail's post 08/01/2026

Rodeo Valley Trail Run has been sublime!

Congratulations runners

Thank you volunteers for all the amazing effort to support the trail community today

CR in the Men's 30K today!

Results 🔗 tiny.cc/rodeo26

📸: Let’s Wander Productions
Esther Ramos & Sacramento Photographer

07/30/2026

*REGISTRATION OPENS AUGUST 1*

Our toughest challenge on the calendar. TWO FIFTY MILERS five weeks apart.
1. Monterey Ultra 50M - February 6, 2027
2. Marin Ultra Challenge 50M - March 13, 2027

Monterey Ultra 50M can be a fast run able course with 7,000' elevation gain around the Fort Ord National Monument. A little sand, rock, single track and long grinding climbs.

The second, our premier ultra marathon, "The MUC" (Marin Ultra Challenge). The climbing can be relentless (10,000'), and the coastal views, redwoods and the headlands are absolutely majestic.

BIG NEWS for 2027 events!

MONTEREY ULTRA & FORT ORD TRAIL RUN WILL BE A TWO DAY EVENT: Feb 6-7

Saturday = Monterey Ultra 50 Mile & Fort ORD 50K
Sunday = Fort ORD 25K & 10K

Be part of it all, run, volunteer, run & volunteer!

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Location

Address


Oakland, CA
94619

Opening Hours

Monday 9am - 6pm
Tuesday 9am - 6pm
Wednesday 9am - 6pm
Thursday 9am - 6pm
Friday 9am - 6pm