Longmont Gravel 2025

Name: Longmont Gravel 2025
Start: 2025-10-04T00:00:00-04:00
End: 2025-10-04T23:59:59-04:00
Location: Longmont, CO

October 4, 2025

gravel cyclists at Longmont Gravel race event

Updated October 24, 2024 - NOTE: the 2025 date is not confirmed

Longmont Gravel, previously known as Lefthand Gravel, is an eagerly anticipated race for gravel cycling enthusiasts in the Front Range of Colorado from the producers of the producers of Ned Gravel. Organized by Peak to Peak Endurance, a non-profit dedicated to supporting youth programs in the Peak to Peak area, this event is a celebration of the gravel cycling culture in Boulder and Larimer Counties. Known for its inclusivity and community focus, the event welcomes cyclists from all backgrounds and experience levels, offering a unique blend of challenge, fun, and camaraderie.

Strambecco rates Longmont Gravel as one of the Best Gravel Cycling Race Events in the Rockies and one of the Best Gravel Cycling Race Events in Colorado. Whether you are a seasoned racer looking to push your limits or a first-time gravel rider eager to explore new terrain, Longmont Gravel has something to offer for everyone.

Event Course & Info

The Longmont Gravel event offers three course options, each tailored to different skill levels while ensuring an engaging and challenging ride for all participants. The courses vary in distance and elevation, offering a unique experience for each rider, from the casual to the hardcore.

The Triple Course is the most challenging, clocking in at 110 miles with 5,100 feet of elevation gain. Although much of the route is paved, it includes the grueling Carter Lake climb, which riders will tackle 2.5 times. This course is designed for serious gravel enthusiasts looking to test their limits, with the elevation gain and length ensuring a demanding yet rewarding experience. The expansive views of Long’s Peak and surrounding lakes make the effort worthwhile.

The Double Course, measuring 71 miles with 3,200 feet of elevation gain, offers a greater challenge. Riders will start with smooth gravel roads before encountering the Carter Lake climbs, a more demanding section that will test their endurance. The route combines gravel and paved sections, providing both technical elements and steady climbing, making it ideal for more experienced riders.

The Single Course is the shortest, at 33 miles with 956 feet of elevation gain. This route features gentle rolling hills, with a blend of gravel roads and bike paths through the scenic North Boulder area. The terrain is non-technical, making it perfect for first-time gravel riders or those looking for a shorter, more relaxed experience. While not physically demanding, the course still delivers beautiful views and a satisfying ride.

Aid stations are strategically placed along all routes to provide hydration, nutrition, and support, ensuring riders can stay fueled throughout the race. SAG (Support and Gear) vehicles are available throughout the event, ready to assist with mechanical issues, helping riders stay focused on the course without worrying about breakdowns.

Field limits are generous, ensuring the event remains welcoming to all, while completion cutoff times are flexible, allowing riders of all abilities to finish without excessive pressure. Start times are staggered based on the course distance, with the Triple Course starting first, followed by the Double Course, and the Single Course starting last.

At the finish line, participants are greeted with a festive atmosphere at the Left Hand Brewing after-party, where they can celebrate their achievements with craft beer, live music, and the camaraderie of fellow cyclists. The awards ceremony recognizes top performers, but the true spirit of the event lies in participation and the collective celebration of cycling. No qualifying is necessary to enter, making it accessible to all who are ready to take on the gravel challenge.

Check out the official 2024 Race Guide to get a sense of the nitty-gritty details.

Related Events

Multi-sport athletes looking for other premier races and events in Colorado and the broader Rocky Mountains region can take a peek at all of our related Strambecco Best-rated event guides: