REDTAIL RIDGE5K, 10K, Half, 30K, 50K
February 18, 2023
Lake Chabot Regional Park
Castro Valley, CA
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.
50K & 30K – 8:30 AM
Half – 8:45 AM
10K – 9:00 AM
5K – 9:15 AM
Check-In & Bib Pickup:
Race Morning: 7:30 AM – 9:05 AM
Time Limit: There is an 8.5 hour time limit for the 50K & 30K race. All runners must be off the course by 5:00 PM.
Parking: Parking at Lake Chabot Regional Park is include in the entry fee 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.
Lake Chabot Regional Park
17936 Lake Chabot Road, Castro Valley, CA 94546
Click for Directions
Timing: All races are professionally chip timed, utilizing MyLaps and Race Director, ensuring your time is captured as accurately as possible. Disposable chips are attached to back of each bib number.
Capacity: The Redtail Ridge Trail Run has a capacity of 500 runners, across all distances.
Post Race: We offer a broad selection of sweet and salty snacks, as well as fresh fruit and a diverse line up of pre-packaged food options (chips, cakes, jerkey, etc.). We also offer items off of the grill, which typically varies throughout the day and can include: quesadillas, chicken-apple turkey sausage, chicken noodle soup, and a vegan soup option.
Dog Policy: Dogs are allowed at Lake Chabot and Anthony Chabot Regional Parks. Pups must be on leash at all times. You may run the race with your dog, but must start at the back of the pack and allow all other runners to proceed before starting. Please keep your dogs health (and paws) in mind when choosing to run with them.
50K (31.6 Miles with 4,800′ Elevation Gain)
30K (18.6 Miles with 2,500′ Elevation Gain)
Half Marathon (13.1 Miles with 1,800′ Elevation Gain)
10K (6.4 Miles with 650′ Elevation Gain)
5K (3.1 Miles with 150′ Elevation Gain)
DETAILED COURSE INFO
Printable Course Information
- Course Map
- Turn by Turn Directions – Coming Soon…
- Aid Station Distances and Cutoffs
- Elevation Profiles
The vast majority of the course will be run on moderately technical dirt trails and non-technical fire roads. The hills can be long, and challenging! Hiking/trekking poles are permitted at this venue.
Courses are marked with colored surveyor ribbon, placed approximately every 200 meters along the course. Turns are marked heavily on the inside of the turn, with ~3 ribbons placed just before and just after the intersection. There will also be 8.5″ x 11″ laminated signs and flour arrows on the ground (when allowed) at critical or complicated sections. The detailed course map displays which colored ribbons must be followed for each route. Please keep in mind if you are running a longer distance, you will likely need to follow more than one color while out on the course. The most important course marking is the blue ribbon. Blue ribbons indicate “wrong way” trails. You will see blue ribbons, but do not run past a blue ribbon or you will be heading off course!
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, Gu Stroop-Waffles, trail mix, pretzels, potato chips, Oreo cookies, Pop Tarts, PB&J sandwiches, M&M’s, Mike & Ike’s, boiled potatoes with salt, Coke, Mountain Dew, Ginger Ale, water, Tailwind Endurance Fuel, salt tablets, and seasonal fresh fruit. 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.
Drop bag services are not available.
This a cupless event, meaning aid stations will not have paper cups available for runner use. Each runner will be responsible for carrying their own water bottle or reusable cup. Reusable cups are made of silicone, are collapsible, and easy to carry with you while you run. Going cupless will keep hundreds, or thousands, of paper cups from being thrown away or left littering the trails. Read more about our cupless events here. Reusable cups by HydraPak will be available for purchase at each event for $5.
Run with us at Lake Chabot!
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.
To volunteer for this year’s event, please submit our online volunteer form.
★ In an effort to promote healthy competition, overall awards are determined by gun time (the first 3 men and women across the finish line). Age group awards are determined by chip time (the time from crossing the start line to crossing the finish line).
The top three overall winners (male and female) of each race distance will receive a custom trophy with the race logo.
All finishers will receive a custom medal with the race logo.
All 50K finishers will receive a pint glass 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:
• 13 and under
• 14 – 19
• 20 – 29
• 30 – 39
• 40 – 49
• 50 – 59
• 60 – 69
• 70 and over
All registered runners will receive a District Perfect-Tri tri-blend 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, this tri-blend 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.
● 4.5-ounce, 50/25/25 poly/combed ring spun cotton/rayon, 32 singles
● 1X1 rib knit neck
● Shoulder to shoulder taping
● UPF 30
To be guaranteed your shirt size, you must register by February 4, 2023.
|5K – Male||Nick Sigmon||31||2018||16:40|
|5K – Female||Marie Thompson||29||2019||20:17|
|10K – Male||Anthony Cortes||25||2019||37:56|
|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||Magdalena Boulet||46||2020||4:13:07|
February 22, 2020
Results for previous years can be viewed on Ultrasignup.
THE FINE PRINT
ITR Refund Policy:
Entry fees to our trail runs are non-refundable, and we do not offer transfers or deferrals to future races. Only registered runners can participate, and you may not exchange your entry with another individual. However, with advanced notice, we are happy to credit part of your entry fee to a future Inside Trail Racing event. A credit worth 50% of your original race fee will be issued if the cancellation is received at least 3 weeks prior to the race. There will be no credits or refunds provided if a cancellation is made within 3 weeks of the race. Credits will be available for 1 full year from its issue date. Only registered runners can participate, and you cannot exchange your entry with another runner.
Hosting a trail running event is an expensive and risky endeavor. All race costs are paid for well in advance of race day, so there is no financial gain to be made if a person does not show up on race day. We want all of our registered runners to show up, run, and have fun. While we understand that injuries, conflicts, emergencies, deaths, and other unfortunate events happen and may impact your plans for participation, we must adhere to our cancellation policies.
We do not cancel races due to rain or heat. Due to trail work, closures, or for myriad other reasons, permitting agencies may require changes to the publicized courses at any time prior to an event. This is out of our control, and we therefore will not offer refunds or credits in such a situation. If a race location is changed, but still hosted on the same day, we will automatically transfer the registration over to the new venue, or entrants may choose to run the race remotely and we will mail awards. If a race is postponed all entrants will be transferred to the new date.
If the situation does arise where ITR must outright cancel an event, for any reason, there will be no refunds. This could include earthquakes, floods, extreme weather, unsafe air quality, pandemics, or any other “Act of God”. There will be no refunds, but future race credit or deferrals may be available, dependent on the circumstances and how close to the race date the event was cancelled. We will communicate with all registered runners as soon as possible regarding the cancellation and any pertinent information.
Please refer to our online FAQ page for answers to other commonly asked questions.
REDTAIL RIDGE PHOTOS
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