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Upcoming Triathlons in Massachusetts

Find 33 upcoming events across the state

New England Season Opener
Triathlon
Price rises in 3 days

New England Season Opener

Hopkinton, MA
May 17, 2026
SprintDuathlon
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Fitzgerald Community School Wellness Triathlon
Triathlon

Fitzgerald Community School Wellness Triathlon

Northborough, MA
May 30, 2026
Unique
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LandShark Swim & Swim+Run
Triathlon
Price rises in 3 days

LandShark Swim & Swim+Run

Amesbury, MA
May 31, 2026
Aquathlon
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Tri For Jimmy
Triathlon

Tri For Jimmy

Westfield, MA
May 31, 2026
SprintSuper SprintDuathlonAquabike
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Wellfleet Sprint Triathlon
Triathlon

Wellfleet Sprint Triathlon

Wellfleet, MA
June 6, 2026
Sprint
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The Harvest Triathlon
Triathlon
Price rises in 20 days

The Harvest Triathlon

Wareham, MA
June 7, 2026
OlympicSprint
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Bare Hill Sprint Triathlon, Duathlon and Aquabike
Triathlon
Price rises in 40 days

Bare Hill Sprint Triathlon, Duathlon and Aquabike

Harvard, MA
June 7, 2026
SprintDuathlonAquabike
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IRONMAN 70.3 Western Massachusetts
Triathlon

IRONMAN 70.3 Western Massachusetts

Springfield, MA
June 7, 2026
Half Iron
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Patriot Half-Triathlon & Aquabike
Triathlon

Patriot Half-Triathlon & Aquabike

East Freetown, MA
June 13, 2026
Half IronAquabike
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Hyannis 1 Triathlon
Triathlon
Price rises in 34 days

Hyannis 1 Triathlon

Centerville, MA
June 13, 2026
OlympicSprintAquabike
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Whaling City Triathlon & Duathlon
Triathlon

Whaling City Triathlon & Duathlon

New Bedford, MA
June 28, 2026
SprintDuathlon
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Cohasset Triathlon
Triathlon

Cohasset Triathlon

Cohasset, MA
June 28, 2026
Sprint
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DAM SPRINT TRIATHLON + DUATHLON
Triathlon
Price rises in 3 days

DAM SPRINT TRIATHLON + DUATHLON

Amesbury, MA
July 12, 2026
SprintDuathlonAquabikeYouth
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Falmouth Sprint Triathlon
Triathlon

Falmouth Sprint Triathlon

Falmouth, MA
July 12, 2026
SprintAquabike
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NANTUCKET TRIATHLON
Triathlon

NANTUCKET TRIATHLON

Nantucket, MA
July 18, 2026
Sprint
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APPLEMAN TRIATHLON/DUATHLON/AQUABIKE CHARITY RACE
Triathlon
Price rises in 82 days

APPLEMAN TRIATHLON/DUATHLON/AQUABIKE CHARITY RACE

Littleton, MA
July 19, 2026
SprintDuathlonAquabike
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Mattapoisett Lions Triathlon
Triathlon
Price rises in 63 days

Mattapoisett Lions Triathlon

Mattapoisett, MA
July 26, 2026
SprintYouth
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COHASSET KIDS TRIATHLON
Triathlon

COHASSET KIDS TRIATHLON

Cohasset, MA
August 1, 2026
Youth
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Greenfield Triathlon
Triathlon
Price rises in 94 days

Greenfield Triathlon

Greenfield, MA
August 2, 2026
OlympicSprint
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Gloucester Sprint Triathlon
Triathlon

Gloucester Sprint Triathlon

Gloucester, MA
August 2, 2026
Sprint
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The Sharon Triathlon
Triathlon
Price rises in 34 days

The Sharon Triathlon

Sharon, MA
August 9, 2026
Sprint
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Cranberry Trifest Sprint Triathlon
Triathlon

Cranberry Trifest Sprint Triathlon

Lakeville, MA
August 23, 2026
OlympicSprintAquabike
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The Boston Triathlon
Triathlon

The Boston Triathlon

South Boston, MA
August 23, 2026
OlympicSprintAquabike
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Kingsbury Club Summer Youth Triathlon
Triathlon
Price rises in 3 days

Kingsbury Club Summer Youth Triathlon

Medfield, MA
August 23, 2026
Youth
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Hyannis 2 Triathlon
Triathlon

Hyannis 2 Triathlon

Centerville, MA
September 12, 2026
OlympicSprintAquathlon
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Hyannis 2 Triathlon
Triathlon
Price rises in 34 days

Hyannis 2 Triathlon

Centerville, MA
September 12, 2026
OlympicSprintAquabikeDuathlon
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Title 9 Women's Triathlon
Triathlon
Price rises in 34 days

Title 9 Women's Triathlon

Hopkinton, MA
September 13, 2026
Sprint
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Dover Sherborn Boosters Triathlon
Triathlon
Price rises in 33 days

Dover Sherborn Boosters Triathlon

Dover-Sherborn, MA
September 13, 2026
Sprint
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GutCheck Cape Cod
Triathlon
Price rises in 34 days

GutCheck Cape Cod

Brewster, MA
September 19, 2026
Unique
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GutCheck Cape Cod
Triathlon

GutCheck Cape Cod

Brewster, MA
September 19, 2026
Sprint
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The Great Josh Billings Runaground
Triathlon

The Great Josh Billings Runaground

Lenox, MA
September 20, 2026
Dry Tri
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Buzzard's Bay Sprint Triathlon & Du
Triathlon
Price rises in 34 days

Buzzard's Bay Sprint Triathlon & Du

Westport, MA
September 20, 2026
SprintDuathlonAquabike
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The Great River Challenge, Off-road Triathlon
Triathlon
Price rises in 93 days

The Great River Challenge, Off-road Triathlon

Northfield, MA
October 3, 2026
Dry Tri
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Finding the Right Massachusetts Triathlon

Whether you are looking for a beginner-friendly Sprint in Massachusetts or a challenging 70.3, Let's Race provides the most up-to-date calendar for triathletes. Our Massachusetts list is updated daily to include Ironman, Olympic, and local club races.