Upcoming Triathlons

Endurance Grid lists 411 triathlons across the US, from October 2026 to October 2027 across 46 states.

Find Triathlon races near you

411
Races
46
States

What a triathlon is

A triathlon is three sports in one race — swim, then bike, then run, back to back, with two timed transitions in between. The sprint distance — a 750m swim, 20K bike, and 5K run — makes the sport more accessible than most people think.

The swim start is exciting and chaotic but finds a rhythm fast; the bike course is usually quiet; the run brings the crowds and the finish line. Beyond fitness, the transitions between disciplines are their own skill.

Sprint
750m · 20K · 5K

Best starting point. Three disciplines to get a taste of what the sport has to offer.

Browse Sprint Triathlons
Olympic
1.5km · 40K · 10K

Double the sprint. The step most athletes take to move beyond sprint distances.

Browse Olympic Triathlons
70.3 / Half Iron
1.9km · 90km · 21.1km

Where training becomes a lifestyle.

Browse 70.3 Triathlons

Explore Triathlon

By distance

SprintOlympic70.3

By state

AlabamaArizonaCaliforniaFloridaIdahoIllinoisIndianaIowaKansasMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNew JerseyNew YorkNorth CarolinaOhioOregonPennsylvaniaSouth CarolinaTennesseeTexasUtahVirginiaWashingtonWisconsin

By month

October 2026November 2026December 2026January 2027February 2027March 2027April 2027May 2027June 2027July 2027August 2027September 2027

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Frequently Asked Questions

How many triathlons are there in the US?
Endurance Grid's Race Calendar lists 411 upcoming triathlons across 46 states.
Which states have the most triathlons?
The states with the most triathlons on Endurance Grid's Race Calendar are California, Florida, Texas, New York, Virginia, and Wisconsin.
What are the triathlon distances?
The standard triathlon distances are sprint (about a 750m swim, 20K bike, 5K run), Olympic (1.5K / 40K / 10K), 70.3 or half-Ironman, and 140.6 or full Ironman.
What is a triathlon?
A triathlon is a multisport race combining swimming, cycling, and running in immediate succession, in that order. To learn more about what a triathlon is, check out Endurance Grid's sports guide.
What happens in a triathlon transition?
A triathlon has two timed transitions — T1 (swim to bike) and T2 (bike to run) — in a transition area where your bike and gear are racked. The clock keeps running through them, so moving efficiently between disciplines is part of the race.