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Swimmers participating in an open water swim at Harveys Lake during the Back Mountain Triathlon, Harveys Lake, PA.
Races & Walks
August 15, 2025

Back Mountain Triathlon 2025 Event Guide

The 3rd Annual Back Mountain Triathlon kicks off Sunday, August 24, 2025, in Harveys Lake, PA. Athletes will swim, bike and run through one of NEPA’s most scenic race courses in this USA Triathlon-sanctioned event.

High Stakes, Fast Paces and Fierce Determination at the Back Mountain Triathlon

The 3rd Annual Back Mountain Triathlon returns to Harveys Lake on Sunday, August 24, 2025, bringing with it a full day of athletic challenge, community spirit and summer celebration. Sanctioned by USA Triathlon (USAT), this prestigious event continues the region’s long-standing multi-sport tradition, drawing inspiration from the legendary Wilkes-Barre Triathlon and carrying its legacy forward with new energy.

Athletes from across the Northeast and beyond will take on the scenic course, combining swimming, biking and running through one of Northeastern Pennsylvania’s most picturesque communities. Known for its spirited competition and welcoming atmosphere, the Back Mountain Triathlon not only tests endurance but also highlights the beauty of Harveys Lake and its surrounding landscapes.

Spectators are invited to line the course and cheer on competitors, creating a lively backdrop of encouragement. With food trucks, local vendors and family-friendly activities set up around the lake, the event blends competition with a festival-like atmosphere, making it a highlight of the summer season in Harveys Lake.

 

Giving Back to the Community

More than just a race, the Back Mountain Triathlon supports local nonprofits and community organizations. Each year, proceeds from the event help fund area initiatives, assist first responders and strengthen local programs. By combining athletic excellence with a spirit of generosity, the triathlon continues to make a lasting impact both on and off the course.

2025 Back Mountain Triathlon: Everything You Need To Know
One woman and three men pose with medals around their necks after competing in the Back Mountain Triathlon in Harveys Lake, PA.

Registation Fees

Before April 30:
Single Registration Individual Olympic $160.00
Single Registration Relay Olympic $180.00
Single Registration Individual Sprint $150.00
Single Registration Individual AquaBike $160.00

Kid’s Fun Runs

Starting at 1 p.m for ages 6-8, 9-11, 12-14 – $15

Packet Pickup

Lake-Noxen Elementary School
135 West Point Ave, Harveys Lake, PA 18618
Saturday, August 23 from 1 to 4 p.m.
Sunday, August 24 from 5 to 6:30 a.m.

Race Day

Sandy Beach at the Harvey’s Lake Beach Club
Pole 2248, Harvey’s Lake, PA 18618
Sunday, August 24 at 7 a.m.

Awards

Immediately following the race, scheduled to conclude around 11 a.m.

Swim Course
Graphic image of the swim course map for the Back Mountain Triathlon, Harveys Lake, PA.

The swim course is a rectangular, out and back course covering 1500 meters or .93 miles. The swim portion begins and ends at Sandy Beach adjacent to the PA Fish & Boat Commission Boat Launch.

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Bike Course
Graphic image of the bike course map for the Back Mountain Triathlon, Harveys Lake, PA.

The 20+ mile bike course features two laps, starting on Lakeshore Drive and heading toward Noxen via Route 29 before looping back to the lake area up Buckwheat Hollow Road. Cyclists will finish the course at Lake-Noxen Elementary School.

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Run Course
Graphic image of the foot race course map for the Back Mountain Triathlon, Harveys Lake, PA.

The 6.2-mile run course starts at Lake-Noxen Elementary, following Schoolhouse Road, Church Road, Tulip Road and Hallowich Road. At the 3.1-mile mark, runners will reverse course and finish back back at the school.

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Registration
A man wearing a swim cap, goggles and wetsuit with the number 155 written on his left arm participates in the Back Mountain Triathlon in Harveys Lake, PA.

Registration for the 2025 Back Mountain Triathlon, including the Youth Fun Run for ages 6–14, is underway. Participants can compete individually or as part of relay teams consisting of 2–3 athletes. The triathlon also offers an Aquabike and Sprint option. The Back Mountain Triathlon will be officially timed by NEPA Racing, Inc. and is sanctioned by USA Triathlon. Athletes may also have the opportunity to qualify for USAT Nationals.

*Registration cutoff for swag bag and tee is Wednesday, August 13 at 11:59 p.m.
*Late Registration cutoff – no swag bag and tee – is Friday, August 22 at 11:59 p.m.

Register

Learn more about the 2025 Back Mountain Triathlon

Read athlete’s stories, check out last year’s results and more here. And, if you want to be a part of the race day action without all the running, swimming and biking, you can sign up to be a volunteer.

A swimmer exits the lake under a NEPARacing.com inflatable arch during the Back Mountain Triathlon in Harveys Lake, PA.

Lace up and get moving

NEPA’s race calendar is packed with exciting events—from themed 5Ks to scenic half-marathons—offering something for every runner and walker. Explore upcoming races and walks in the region to find your next challenge.

All photos Courtesy of Back Mountain Triathlon.

Article updated from its original version published on 4/13/23.

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