Chabot Trail Run

WHEN: Saturday – February 17, 2018
WHERE: Lake Chabot Regional Park
17930 Lake Chabot Road
Castro Valley, CA 94546
COST: 5K : $40 / 10K: $50 / Half: $60 /
30K: $70 / 50K: $80
CONTACT: Inside Trail Racing
(415) 320-6220
Congratulations Chabot/Redtail Ridge runners! Results and photos are now available.
Results | Photos

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Lake Chabot Regional Park was established in the 1960s after the reservoir had been closed to recreational use for 91 years. Today, the lake remains as an emergency water supply and is open to fishers and boaters, as it is filled with trout, catfish, bass, crappie, and other fish.

With eucalyptus forests, grassy meadows, lakeside paths, and hill top vistas, Lake Chabot offers over 20 miles of hiking trails, which connect to the additional 70 miles of trails in adjoining Anthony Chabot Regional Park making it a spectacular place to run and also very accessible.

This is one of our typically faster races with less elevation and some paved sections. The course is designed for those who are looking to PR and those who are less competitive and/or just embarking on trail racing.

Park Information: Lake Chabot, Anthony Chabot

Location: Lake Chabot Regional Park Marina
                Castro Valley, CA

Date: Saturday, February 17, 2018

Events: 5K, 10K, Half Marathon, 30K & 50K

Start Times:
          50K & 30K – 8:30 AM
          Half – 8:45 AM
          10K – 9:00 AM
          5K – 9:15 AM

Check-In & Bib Pickup:

      Race Morning
Saturday, Feb. 17
7:30 AM – 9:15 AM
Lake Chabot Marina
Lake Chabot Regional Park

Time Limit: There is an 8.5 hour time limit for the 50K race.

Parking: Parking at Lake Chabot Regional Park is free for all participants who arrive prior to the lots being full. There is additional free parking along the road just outside of the park. Carpooling is always strongly encouraged.

Race Capacity: The Chabot Trail Run will have a capacity of 500 runners, across all distances.

ITR Refund Policy:
Entry fees to our trail runs are non-refundable. With advanced notice, we are happy to transfer part of your entry fee (75% up to two weeks of the event, 50% from 2 weeks up to 72 hours of the event) to a future ITR event. Only registered runners can participate, and you cannot exchange your entry with another runner.

If a race is completely cancelled or rescheduled, we will transfer 100% of your entry fee to another ITR event. If a race location is changed due to park closures, we will automatically transfer the registration over to the new venue, or we will issue a 100% credit if cancellation is received by 7am on the Friday prior to the event.


50K (31.6 Miles with 4,800′ Elevation Gain)

Download file: Chabot-50K.gpx

30K (18.6 Miles with 2,500′ Elevation Gain)

Download file: Chabot-30K.gpx

Half Marathon (13.1 Miles with 1,800′ Elevation Gain)

Download file: Chabot-Half.gpx

10K (6.4 Miles with 650′ Elevation Gain)

Download file: Chabot-10K.gpx

5K (3.1 Miles with 150′ Elevation Gain)

Download file: Chabot-5K.gpx

Detailed Course Map | Turn by Turn Directions – Coming Soon | Aid Station Distances and Cutoffs | Elevation Profiles

Aid Stations

Inside Trail Racing aid stations are replete with an optimal variety of glycogen-replenishing, electrolyte-replacing products. The following is a list of some of the foods and beverages each aid station may provide: Gu Energy gels and chews, all-natural nutrition bars from Larabar, trail mix, pretzels, potato chips, Oreo cookies, Pop Tarts, boiled potatoes with salt, Coke, Mountain Dew, Ginger Ale, water, Tailwind Endurance Fuel, PB&J sandwiches, M&M’s, Mike & Ike’s, salt tablets, and tangerines. Aid stations are also equipped with general first aid items but no anti-inflammatory medicine. As distances between aid station vary, we strongly encourage all runners to carry at least one 20oz bottle during their run.

Tailwind is mixed so that it contains 180 – 200 calories per 20 fluid ounces.


Without the support of enthusiastic and caring volunteers producing our races would not be possible. Volunteers of all ages and abilities help with setup, check-in, aid stations, course marshaling, timing, and post-race food.

Volunteering is a fun, novel way to experience races, play in the outdoors, and spend time with friendly people. All volunteers receive a free race T-shirt, free food, and the ability to earn credit toward a future Inside Trail Racing event, commensurate to the amount of time worked. Five hours of assisting an event results in a free race credit or Inside Trail merchandise.

To volunteer for this year’s event, please submit our online volunteer form.


Overall winners of each race distance will receive a medal, a custom glass Stein and an item from the Inside Trail Racing schwag bag.

All ultra-marathon distance finishers will receive a custom printed Pint Glass with the race logo.

All other finishers will receive a custom medal with the race logo.

The Dead Last Finisher (DLF) in each even will receive a custom award.

Age-group medals (3 deep) will be awarded in the following categories, for both males and females:
     ● 12 and under
     ● 13 – 19
     ● 20 – 29
     ● 30 – 39
     ● 40 – 49
     ● 50 – 59
     ● 60 – 69
     ● 70 and over


All registered runners will receive an A4 Cooling Performance Crew technical fabric shirt. This tee is made with top-of-the-line sportswear technology to heighten performance during your toughest workouts. With sun defense, moisture-wicking technology, quick stain release, and comfortable fit, the cooling performance crew serves the needs of every athlete. It’s the perfect year-round choice for outdoor sports and exercise. Get the most out of your workout with this tough, hardworking tee.

Fabric: 4-Ounce polyester interlock features moisture wicking technology, odor resistance and stain release qualities designed to deliver maximum performance characteristics.

     ● 100% Polyester Interlock, 4.0 ounces per square yard
     ● Moisture wicking, Odor resistant, Stain release
     ● Ultra tight knit resists snagging
     ● UPF 30

To be guaranteed your shirt size, you must register by February 3, 2018.


Distance Name Age Year Time
5K – Male Nick Sigmon 31 2018 16:40
5K – Female Jana Eastus 49 2018 23:27
10K – Male Anthony Cortes 24 2018 38:46
10K – Female Laura Vogel 27 2017 48:37
Half Marathon – Male Scott Trummer 27 2017 1:17:53
Half Marathon – Female Megan Roche 25 2016 1:27:22
30K – Male Steve Arntson 25 2013 1:51:40
30K – Female Megan Roche 24 2015 2:07:35
50K – Male Drew Macomber 25 2018 3:32:51
50K – Female Jennifer Pfeifer 40 2012 4:14:29

Chabot – Redtail Ridge Trail Run | February 17, 2018

5K Overall
10K Overall
Half Marathon Overall
30K Overall
50K Overall


Chabot – Redtail Ridge Trail Run | February 18, 2017

5K Overall
10K Overall
Half Marathon Overall
30K Overall
50K Overall


Chabot – Redtail Ridge Trail Run | February 20, 2016

5K Overall
10K Overall
Half Marathon Overall
30K Overall
50K Overall
Chabot 2016


Chabot Trail Run | February 21, 2015

10K Overall
Half Marathon Overall
30K Overall
50K Overall
Chabot Trail Run

Chabot Trail Run | February 22, 2014

10K Overall
Half Marathon Overall
30K Overall
50K Overall
10K Age Group
Half Marathon Age Group
30K Age Group
50K Age Group

Chabot Trail Run | February 23, 2013

10K Overall
Half Marathon Overall
30K Overall
50K Overall
10K Age Group
Half Marathon Age Group
30K Age Group
50K Age Group

Chabot Trail Run | February 25, 2012

10K Overall
Half Marathon Overall
30K Overall
50K Overall
10K Age Group
Half Marathon Age Group
30K Age Group
50K Age Group


Posted on

December 23, 2014


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