Skyline 50k Endurance Run

“Beginning July 1, 2024, the “Honest Pricing Law” or “Hidden Fees Statute,” SB 478, makes it illegal for businesses to advertise or list a price for a good or service that does not include all required fees or charges other than certain government taxes and shipping costs.”

RACE INFO: We are so excited to celebrate the 42nd annual Lake Chabot Trail Challenge Half Marathon and 5K. This race is well regarded amongst serious trail runners in the outlying areas. The race begins at 8am for the Half Marathon and 8:30am for the 5K. Please arrive early so that you may find parking, pick up your bibs, use restrooms facilities, and be properly prepared to race before the start. Race takes place rain or shine and there are no refunds.

RACE COURSE: The half marathon course is a scenic, hilly loop, mainly on dirt fire roads. The ridge-line views look down upon scenic Lake Chabot, surrounding grassy slopes, and eucalyptus groves. Mt. Diablo and San Francisco Bay are visible along the route. There are water stations with first aid and radio support; we recommend bringing your own hydration as well. The half marathon has a time limit of 3.5 hours. The 5k (3.1 miles) course is an out and back that has gentle rolling hills and consists mostly of paved surfaces. This route includes one water station with first aid and radio support.

RACE FEE: Pre-registered runners will be guaranteed a t-shirt if registered by Sunday, May 10th, 2026. The price for the 5K is $40 and Half Marathon $65. You must register by Saturday, June 6th. We will accept race day registration; however, the price for the 5K is $45 and Half Marathon $70. If you register on race day, we can only accept cash, check or Venmo.

There is a nominal fee (~$5) for Chabot parking lot. Free parking on Lake Chabot Rd and nearby streets.

RACE PACKET & BIB PICK-UP: We will have race packet and bib pick-up on Sunday, June 7th starting at 7am at the Willow picnic site which is also the finish line area. We will not be mailing out any race packets or bibs. Both races are chip-timed.

T-SHIRT: Entry fee includes short sleeve, high quality t-shirts for registrations by May 10th so sign-up early. There are no guarantee of t-shirts for runners registered after that date and on race day. We ask for those who did not get a shirt to check in after the race. Please ensure that you select the appropriate t-shirt size. We will not be doing any size exchanges from your original request.

AWARDS: Finisher's medals to those who complete their race. Age division medals given to the top 3 in each of 12 age divisions in the half marathon and 9 age divisions in the 5K.

Photos: Race photos are being provided by Darrell Lavin of Darrell Lavin Photography. You will receive an email post-race for instructions on how to access and purchase official race photos.

QUESTIONS: If you have any questions, please contact Rachel Lunt at [email protected].

DIRECTIONS: The entrance closest to the event's parking lot is: 17404 Lake Chabot Road, Castro Valley, CA 94546. On Google Maps, this will appear as "Entry of Lake Chabot Parking Space." The registration area and start lines are just a few minutes walk from the lot ( just follow the signs).

Rising up from the depths of Lake Chabot, the Bad Bass (a strangely kilt-wearing, bagpipe-playing Scottish bass with teeth) shows itself once again on July 18th 2026! Why is he Scottish? What is he doing in Castro Valley? How can he play bagpipes with his fin? We have no idea how to answer those questions. Why is he so bad-to-the-fishbone? Maybe he just knows how awesome the trails of Lake Chabot really are!

Whatever the Bad Bass is doing here, we hope you'll join us at the beautiful Lake Chabot Marina in Castro Valley for the scenic Bad Bass 5K, 10K or Half Marathon!

The Animal Run

A community of athletes creating a better, loving and more sustainable world through outdoor exercise and animal kindness

Welcome to our 3rd annual Run/Walk and Canicross (canine cross-country) Tofurkey Trot fundraiser!

Our Mission: Animal Run's vegan foot races raise funds for various animal welfare organizations, helping them save the lives of, find homes for, heal and comfort animal residents in need. Animal Run encourages athletes to support vegan businesses that promote human health and a thriving world.

What is Canicross?

Canicross can be run with one or two dogs, always attached to the runner. The runner wears a waist belt or hip harness to minimize stress on the back lumbar area. The dog wears a specifically designed harness for safe and unrestricted joint movement. The two are joined by a bungee cord or elastic line that reduces shock to both human and dog when the dog pulls. If you're new to the sport, here is how to get started. For additional questions, please reach out to Jennifer Tobits, canicross expert at [email protected].

About This Year's Beneficiary

Coming Soon!

DATE & LOCATION

• Thursday, Nov 26, 2026

Driving directions to parking lot is

Volleyball Sand Court, (14001 Monarch Bay Dr, San Leandro, CA 94577)

• There is a large FREE parking lot next to the race area. There is also street parking if the lot is full.

• Registration opens at 8am

• Races start at 8:55am

Registration Pricing (Online Registration Closes 11/25 at 3pm)*

ADULTS

• $45 5K Solo & virtual runners ($55 for late and same day registration)

• $55K Canicross & virtual teams ($65 for late and for same day registration)

• $45 1 Mile walkers and dog walkers ($55 for late and same day registration)

KIDS

• $35 Kids 12 and under

• $45 Kids 12 and under Canicross Teams

*Note : There is a small processing fee per registration.

For 12-years-old or under canicrossers, Jennifer Tobits will contact you with additional safety instructions.

RACE DAY SCHEDULE

8:00 Registration opens

8:45 Welcome

8:55 5k Canicrossers start

9:00 5k Solo Runners and 1 mile Walkers start

9:30 Vegan Coffee & Carbs

10:00 Awards Ceremony

COURSE DESCRIPTION

5K - Flat and fast with option to run on mostly dirt and grass and some road.

This Year's Beneficiary

Coming Soon

Thank you to our Breakfast Sponsor

Boichik Bagels of Berkeley CA

Thank you to our Prize Sponsor

Wholesome Bakery

OUR ESTEEMED PARTNERS

THE ANIMAL RUN BRANDED

VICTORY SPORTDESIGN PRODUCTS FOR SALE

Please email [email protected] to coordinate your purchase.

Victory Sportdesign blue Cougar II with Animal Run Logo

7L capacity - 8″x6.5″x9″ (fits within the BEAR III for added modular storage) Designed as a go-anywhere, everyday, sport, home, pet, and travel gear bag.

Victory Sportdesign blue Bear III with Animal Run Logo

14L capacity 6″x8″x16″ Designed as a go-anywhere, everyday, sport, home, pet, and travel gear bag. It's also the perfect Ultra racing and multi-day crew and/or drop bag.