4 swimming events in Portland, Maine

From big races to Saturday morning group runs—find swimming events and connect with the local endurance sports community.

• Peaks to Portland, A Swim to Benefit Kids [ymcaofsouthernmaine.org] [Register at runsignup.com]
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  Sat, Jul 18, 2026 at 8:00 AM

  Description

  The Peaks to Portland Swim to Benefit Kids is one of the oldest open water swims in the world; since before World War II thousands have braved Maine’s waters to swim the 2.4 miles from Peaks Island to Portland’s East End Beach.

  2.4 Miles Kids Open Water Swim

  1 Welch Street, Portland, Maine, 04108, United States
  OpenStreetMap Google Maps
• Portland Kids Duathlon [portlandkidsduathlon.com] [Register at runsignup.com]
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  Sun, Jul 19, 2026 at 7:00 AM

  Description

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  About the Race

  Portland’s first multisport race for children, The Portland Kids Duathlon, is presented by Benchmark Real Estate. The race gives young people ages 3-12 an opportunity to participate in...

  About the Race

  Portland’s first multisport race for children, The Portland Kids Duathlon, is presented by Benchmark Real Estate. The race gives young people ages 3-12 an opportunity to participate in the fast-growing world of multi-sport racing. The run, bike, run format of a duathlon is fun and approachable, a great race for non-swimmers and triathletes alike. A bike only event for our youngest athletes as well as those with special needs makes the event even more accessible. All young athletes will finish the race with a smile on their face, a medal around their neck, and a boost of self-confidence and pride. All profits from this race will be donated to the Foundation for Portland Public Schools. Both in-person and virtual race options available.

  Course

  Transition will be at the triangle in front of Payson Park with separate transition areas for each race. We are on Baxter Boulevard with out-and-back bike courses on the road and out-and-back runs on the trail. Courses will parallel each other to make for easy viewing for spectators. All roads will be traffic free.

  NOTE: All participants will need to purchase an annual membership with the USA Triathlon (USAT) for an additional $10. This is because our race is sanctioned and supported by USAT. See details below. USAT has now made this a one time fee.

  About USAT

  The Portland Kids Duathlon is USA Triathlon (USAT) sanctioned event. This means that not only do you have the confidence to know that the race will be safe, sanctioned, and insured but also that we follow a uniform set of rules with other USAT events. The term “sanction” refers to the compliance of a multisport event to USA Triathlon’s safety requirements. Safety plans, course maps, and event details must be submitted for review by USA Triathlon staff. It further requires our race director undergo an annual background check and maintain a certification from the U.S. Center for SafeSport. As a member, you also have access to discounts from many of USAT's partners including sports related products and travel companies. Those are found once you've created an account and then added and logged in to your child's account at https://member.usatriathlon.org/.

  1 Miles 1.5 Miles 4.5 Miles Cycling Duathlon Kids Run Swim Trail Triathlon Virtual

  Portland, Maine, 04103, United States
  OpenStreetMap Google Maps
• Casco Bay USA [otilloswimrun.com]
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  Sun, Aug 09, 2026

  Description

  The birthplace of Americas first official SwimRun. Where it all began. Salty ocean swims, changing tides, island hopping, rock scrambles, historic sites, and that feel that only the East Coast, Maine, and this legendary race can deliver.

  Run Swim SwimRun

  Portland, Maine, United States
  OpenStreetMap Google Maps

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