A hidden redwood forest lies in the hills just a few miles over the ridge from downtown Oakland. The forest’s peaceful groves give little evidence of the park’s bustling past – in the mid-1800s the area was the scene of extensive logging to supply building materials for the San Francisco Bay Area. The logging era has long since passed, and a stately forest of 150-foot coast redwoods (Sequoia sempervirens) has replaced those cut down. In addition to a great forest of coast redwoods, the park’s 1,830 acres also contain other evergreens, chaparral, and grasslands. Wildlife within the park includes rare species such as the golden eagle and Alameda striped racer. Deer, raccoons, rabbits, and squirrels are often seen. Location: Redwood Regional Park - Oakland, CA & EBMUD Trails - Orinda, CA Events: 10K, Half Marathon, 35K
Detailed Course Map | Turn by Turn Directions | Aid Station Distances and Cutoffs | Elevation Profiles Volunteer 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 . Cupless Event 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 ($5) and 500ml Soft Flasks ($15) by will be available for purchase at most events. 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, chews, and Stroopwafels, trail mix, pretzels, potato chips, Oreo cookies, Coke, Ginger Ale, water, Skratch Labs Sports Hydration Mix, PB&J sandwiches, M&M’s, salt tablets, bananas, watermelon, and tangerines. Aid stations are also equipped with general first aid items, including Salt-Stick tablets, but no anti-inflammatory medicine. Skratch Labs is 80 calories per serving with minimal sugar (4g per 100 ml) and a ratio of sugar (glucose + fructose) that is optimized for faster absorption, an electrolyte profile that actually matches what is lost in sweat (800 mg sodium, 80 mg potassium, 100 mg calcium, and 80 mg of magnesium per liter) As distances between aid station vary, we strongly encourage all runners to carry at least one 20oz bottle during their run. Shirts Most of our race shirts are 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. Features: ● 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 a shirt and shirt size, you must register by October 10, 2026.
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 .
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 ($5) and 500ml Soft Flasks ($15) by will be available for purchase at most events.
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, chews, and Stroopwafels, trail mix, pretzels, potato chips, Oreo cookies, Coke, Ginger Ale, water, Skratch Labs Sports Hydration Mix, PB&J sandwiches, M&M’s, salt tablets, bananas, watermelon, and tangerines. Aid stations are also equipped with general first aid items, including Salt-Stick tablets, but no anti-inflammatory medicine. Skratch Labs is 80 calories per serving with minimal sugar (4g per 100 ml) and a ratio of sugar (glucose + fructose) that is optimized for faster absorption, an electrolyte profile that actually matches what is lost in sweat (800 mg sodium, 80 mg potassium, 100 mg calcium, and 80 mg of magnesium per liter) As distances between aid station vary, we strongly encourage all runners to carry at least one 20oz bottle during their run.
Most of our race shirts are 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. Features: ● 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 a shirt and shirt size, you must register by October 10, 2026.
The top three overall winners (male and female) of each race distance will receive a custom trophy with the race logo. In addition, the top finisher for each distance (male and female) will receive a special item from one of Inside Trail’s sponsors. All 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: ● 13 and under ● 14 – 19 ● 20 – 29 ● 30 – 39 ● 40 – 49 ● 50 – 59 ● 60 – 69 ● 70 and over
Entry fees to our trail runs are non-refundable in all cases, and we do not offer credits, transfers, or deferrals to future races except as described below. Only registered runners can participate in our races, and you cannot exchange your entry with anyone else in any case. We are happy to issue a credit worth 50% of your original race fee toward a future Inside Trail Racing event if we receive your cancellation at least 3 weeks prior to the race. Credits will expire 1 year after the date issued. There will be no credit provided if a cancellation is made within 3 weeks of the race. While we understand that last-minute injuries, conflicts, emergencies, deaths, and other unfortunate events affecting registered runners can happen and may impact your plans for participation, we must adhere to our cancellation policy stated above and cannot offer any credits, refunds, transfers, or deferrals in any of these cases. 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”. ITR at its sole discretion may choose to offer future race credit or deferrals in these force majeure situations, depending 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. 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, credits, deferrals, or transfers (except as described below) 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. www.insidetrail.com
Oct 24, 2026
Distance — 21.1K
Type — Running
08:30
$105.00
Oct 24, 2026
Distance — 35K
Type — Running
08:30
$115.00
Oct 24, 2026
Distance — 10K
Type — Running
09:00
$85.00
These values represent the 3-year monthly averages for October in Oakland.
Learn more about the host city, Oakland.
Oakland is a port city in the Bay Area of California in the United States. Once an industrial area overshadowed by San Francisco, its larger neighbor to the west, this city of 440,000 people (2020) has begun to step out from under San Francisco's shadow with its notable natural and architectural features and its rise as the multicultural "hipster" city of the Bay Area.
Read more launchAll-time top performances and historical records for Oakland Hills Trail Run.
| Place | Name | Year | Time | |
|---|---|---|---|---|
| 🥇 | Matt Daniels | '19 | 2:37:56 | |
| 🥈 | Scott Trummer | '17 | 2:43:34 | |
| 🥉 | Drew Holmen | '17 | 2:45:23 | |
| 4 | Drew Macomber | '22 | 2:47:01 | |
| 5 | Tommy Evans | '15 | 2:47:19 | |
| 6 | Spenser Talkington | '15 | 2:53:31 | |
| 7 | Nick Handel | '17 | 2:56:10 | |
| 8 | Roger Montes | '15 | 2:56:46 | |
| 9 | Erik Sorenson | '16 | 2:57:07 | |
| 10 | Brian Gillis | '16 | 2:57:54 |
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location_on Oakland, California, US
calendar_today Oct 10, 2026
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