Spring 2026 Boston Races: Upcoming 5Ks, Half Marathons & Marathons to Register For
Looking for Boston races this spring? From 5Ks to marathons, discover the top upcoming races in April and May 2026 and find your next start line.
Spring is here, and the Boston running scene is heating up! From 5Ks to full marathons, there’s a race for every pace and passion. Whether you’re chasing a personal best, running for charity, or just looking for a fun way to get outside, check out these upcoming races for April and May.
April 2026 Races
Race to Cure Sarcoma Boston – 5K
📍 Boston Common | Sunday, April 5
Run to support sarcoma research in this community-focused 5K. Perfect for beginners and seasoned runners alike.
Register Here
5K Beer Run x Sam Adams
📍 Jamaica Plain | Saturday, April 11
Combine fitness and fun at this brewery-themed 5K. Celebrate with a cold brew at the finish line!
Register Here
Marblehead Half Marathon – 13.1 Miles
📍 Marblehead, MA | Sunday, April 12
Enjoy scenic coastal views on this challenging and rewarding half marathon.
Register Here
BAA 5K
📍 Boston Common | Saturday, April 18
A perfect prelude to the Boston Marathon weekend, this 5K is fast, fun, and flat. If you’re not running, go watch the elites!
Details Here
Boston Marathon – 26.2 Miles
📍 Boston, MA | Monday, April 20
The world’s most iconic marathon returns for its 130th year! Cheer on friends, family, elites, and everyone who has poured their heart into training for this iconic race. Wishing all the runners a smooth, speedy, and unforgettable race day!
May 2026 Races
Founders Run 5K - UMass Boston Entrepreneurship Club
📍 Dorchester | Saturday, May 2
Run for a good cause! Proceeds from the race help fund student participation in UMass Boston Entrepreneurship Club activities.
Charles River Marathon – 26.2 Miles
📍 Boston, MA | Sunday, May 3
One of the fastest BQ courses in the world! Runners will tackle 10 laps of a scenic 2.6-mile loop.
Details Here
Boston Marine Corps Honor Run – 5K – May 9
📍 Boston, MA | Saturday, May 9
Run or walk along Boston’s fastest 5K course while honoring the brave men and women of the U.S. Marine Corps. Proceeds support the Marine Corps Scholarship Foundation and Fisher House Boston, all in celebration of the Corps’ 250th anniversary.
One Love 5K Family Fitness Challenge
📍 Franklin Park Zoo | Saturday, May 23
Join One Love Sports Academy for a fun, family-centered 5K run/walk! All proceeds support One Love youth programs across Dorchester, Roxbury, and Mattapan.
Boston's Run to Remember – 5 Miles & Half Marathon
📍 Seaport | Sunday, May 24
Run for a cause and honor loved ones in this heartwarming event through the streets of Boston.
Looking Ahead
Boston’s running calendar doesn’t stop here. From charity 5Ks to full marathons, there’s a race for everyone. Whether you’re running solo, with friends, or for a cause, these events are the perfect way to stay active and connect with the Boston running community. Information for these races can also be found on our Races page!
This post was contributed by Margot Murphy, Run Scene Insider.