Folsom Lake Trail Half Marathon

WHEN: Saturday – April 24, 2021
WHERE: Folsom Lake State Recreation Area
Brown’s Ravine Marina
661 Green Valley Road
El Dorado Hills, CA 95762
COST: Half Marathon: $70
CONTACT: Inside Trail Racing


A new twist on an old favorite! This year’s Folsom Lake Trail Run will look a bit different than in years past. We will have a new start/finish area, and we’ll only be offering one distance with wave starts. Keep checking this page for more information as we can make it available.

In the event this race needs to be cancelled due to COVID-19 related lockdowns, there will be no refunds. Instead, we will be offering a credit to any future ITR race. This credit will be good for 2 years after the date of the cancelled event.

Register Online

Add $10 if registering on or after April 9, 2021. No race day registration will be available.
Registration through 5:00 PM on April 22, or until sold out.

Entrants List | Runner Information Email | Results


Folsom Lake is a popular destination for campers and boaters, yet also offers lakeside trails that meander around much of the 75 miles of lake shore.

Our annual Folsom Lake Trail Run will look and feel very different in 2021. Due to COVID-19 restrictions, we are only hosting a Half Marathon that traverses the beautiful lake side trails between Brown’s Ravine and New York Creek.

Park information: Folsom Lake

Location: Brown’s Ravine

Date: Saturday, April 24, 2021

Events: Half Marathon (13.3 Miles)

Start Times:
     ● Wave 1 – 8:00 AM
     ● Wave 2 – 8:30 AM
     ● Wave 3 – 9:00 AM
     ● Wave 4 – 9:30 AM

Check-In & Bib Pickup:
     Race Morning Only @ Brown’s Ravine
     ● Wave 1: 7:15 AM – 7:50 AM
     ● Wave 2: 7:45 AM – 8:20 AM
     ● Wave 3: 8:15 AM – 8:50 AM
     ● Wave 4: 8:45 AM – 9:20 AM

Time Limit: There is an 4.5 hour cutoff for each wave of the race.

Parking: Parking is $12.00 and available within Brown’s Ravine. California State Park Poppy Passes are accepted.

Race Capacity: The Folsom Lake Trail Half will have a capacity of 300 runners, across all waves.

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.


Half Marathon (13.3 Miles with 900′ Elevation Gain)

Detailed Course Maps | Aid Station Distances & Cutoffs | Elevation Profiles

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.

Aid Stations

COVID NOTE: Runners must wear a face covering when approaching, leaving, and while in the confines of the aid station area. Hand Sanitizer will be available at the aid station.

Inside Trail Racing aid stations are replete with an optimal variety of glycogen-replenishing, electrolyte-replacing products. Due to COVID-19 restrictions, this year’s Folsom Lake Trail Half will have one aid station which will likely contain the following: Gu Energy gels and chews, Gu Energy Stroop Waffles, Water, Tailwind Endurance Fuel, Coke, and Ginger Ale. There will not be any communal food available. All fuel and drink items will be distributed by a trainer staff member or volunteer. We strongly recommend that runners carry their own food and drink out on the course. 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.


Overall winners of each race distance will a custom trophy and an item from an Inside Trail sponsor.

All finishers will receive a custom 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 April 10, 2021.


Distance Name Age Year Time
Half Marathon- Male Tommy Vargas 35 2019 1:23:06
Half Marathon – Female Hannah Bell 24 2018 1:41:15

* NOTE: Course records displayed are from our Folsom Lake Trail Run, which is a different course but run along the same trails. These are only shown to give you an idea of how fast the course is. The male and female winners of this year’s event will be the official course record holders.