How many triathlons are in Washington?

There are 40 triathlon events listed in Washington, with 28 upcoming races.

When is triathlon season in Washington?

Triathlon season in Washington typically runs from May through September, with peak racing in June, July, and August.

Are there beginner triathlons in Washington?

Yes! Washington offers many beginner-friendly sprint and super-sprint distance triathlons, as well as youth events. Check our calendar for races marked as beginner-friendly.

Washington Triathlon Events

Washington State offers diverse triathlon experiences, from the iconic Seafair Triathlon in Seattle to destination races in the San Juan Islands and Bellingham. The Tri-Cities region hosts multiple events including Ironman 70.3 Washington. Race season runs May through September.

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Seattle Bellingham Tri-Cities Spokane

Upcoming Events (28)

			WEBSITE		MAP	RACE TYPES
Apr 19, 2026	20 weeks and 1 day	Pinnacle Peak Spring Duathlon	Visit	Enumclaw, WA	Map	SprintDuathlon
Apr 26, 2026	21 weeks and 1 day	Spring Classic Duathlon	Visit	Vancouver, WA	Map	SprintDuathlonYouth
May 2, 2026	22 weeks	Rage in the Sage	Visit	Benton City, WA	Map	SprintDuathlon
May 10, 2026	23 weeks and 1 day	Cedar River Triathlon	Visit	Maple Valley, WA	Map	Sprint
May 17, 2026	24 weeks and 1 day	Onion Man Triathlon	Visit	Walla Walla, WA	Map	Olympic
May 23, 2026	25 weeks	Medical Lake Triathlon	Visit	Medical Lake, WA	Map	OlympicSprint
May 24, 2026	25 weeks and 1 day	Ski to Sea	Visit	Bellingham, WA	Map	Other
Jun 6, 2026	27 weeks	Lake Wilderness Multisport	Visit	Maple Valley, WA	Map	OlympicSprintDuathlon
Jun 14, 2026	28 weeks and 1 day	Columbia River Half Iron	Visit	Vantage, WA	Map	70.3
Jun 14, 2026	28 weeks and 1 day	OTILLO SwimRun - Orcas Island	Visit	Eastsound, WA	Map	—
Jun 27, 2026	30 weeks	Padden Triathlon	Visit	Bellingham, WA	Map	OlympicSprint
Jun 27, 2026	30 weeks	Black Diamond Triathlon	Visit	Enumclaw, WA	Map	OlympicSprint
Jul 11, 2026	32 weeks	Righteous Richland Sprint Triathlon	Visit	Richland, WA	Map	Sprint
Jul 11, 2026	32 weeks	Lake Whatcom Triathlon	Visit	Bellingham, WA	Map	OlympicSprintYouth
Jul 31, 2026	34 weeks and 6 days	Aquaman Duathlon	Visit	Richland, WA	Map	—
Jul 31, 2026	34 weeks and 6 days	Columbia River Triathlon	Visit	Vancouver, WA	Map	OlympicSprintDuathlon+1
Aug 1, 2026	35 weeks	Lake Tye Triathlon	Visit	Monroe, WA	Map	OlympicSprintDuathlon+1
Aug 1, 2026	35 weeks	Titanium Man Junior Triathlon	Visit	Richland, WA	Map	Youth
Aug 2, 2026	35 weeks and 1 day	Girlfriends Triathlon	Visit	Vancouver, WA	Map	SprintDuathlon
Aug 22, 2026	38 weeks	Lake Meridian Triathlon	Visit	Kent, WA	Map	OlympicSprint
Aug 29, 2026	39 weeks	Plutonium Man	Visit	Richland, WA	Map	OlympicSprint
Aug 30, 2026	39 weeks and 1 day	Beaver Lake Triathlon	Visit	Sammamish, WA	Map	Sprint
Sep 6, 2026	40 weeks and 1 day	Rattlesnake Lake Triathlon	Visit	North Bend, WA	Map	Sprint
Sep 12, 2026	41 weeks	Diamond Tri Your Best	Visit	Newport, WA	Map	Sprint
Sep 19, 2026	42 weeks	Chealanathon Triathlon	Visit	Chelan, WA	Map	Olympic
Sep 20, 2026	42 weeks and 1 day	Ironman 70.3 Washington	Visit	Richland, WA	Map	70.3
Sep 26, 2026	43 weeks	Big Hurt	Visit	Port Angeles, WA	Map	Olympic
Sep 26, 2026	43 weeks	Little Hurt	Visit	Port Angeles, WA	Map	Youth

Showing 28 of 40 events

Training Resources

Local Triathlon Clubs

View all 13 →

3 Rivers Road Runners (3rrr)

Richland, WA

Bellingham Triathlon Club

Bellingham, WA

Husky Triathlon Club

Seattle, WA

Pauole Sport

Seattle, WA

PR Performance

Bellevue, WA

Raise the Bar

Auburn, WA

Triathlon Coaches

View all 7 →

Pauole SportSeattle, WA

PR PerformanceSeattle / Bellevue / Kirkland

TN MultisportsSeattle, WA

Strong2theFinishlineSeattle, WA

SET CoachingWenatchee, WA

Team Blaze SpokaneSpokane, WA

Upcoming Events (28)

Pinnacle Peak Spring Duathlon

Spring Classic Duathlon

Rage in the Sage

Cedar River Triathlon

Onion Man Triathlon

Medical Lake Triathlon

Ski to Sea

Lake Wilderness Multisport

Columbia River Half Iron

OTILLO SwimRun - Orcas Island

Padden Triathlon

Black Diamond Triathlon

Righteous Richland Sprint Triathlon

Lake Whatcom Triathlon

Aquaman Duathlon

Columbia River Triathlon

Lake Tye Triathlon

Titanium Man Junior Triathlon

Girlfriends Triathlon

Lake Meridian Triathlon

Plutonium Man

Beaver Lake Triathlon

Rattlesnake Lake Triathlon

Diamond Tri Your Best

Chealanathon Triathlon

Ironman 70.3 Washington

Big Hurt

Little Hurt

Training Resources

Local Triathlon Clubs

Local Triathlon Clubs

Triathlon Coaches

Triathlon Coaches