How many triathlons are in Seattle?

There are 16 triathlon events listed in Seattle, with 10 upcoming races.

When is triathlon season in Seattle?

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

Are there beginner triathlons in Seattle?

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

Seattle Area Triathlon Events

The Seattle metro area offers the iconic Seafair Triathlon at Seward Park, plus numerous events throughout King County. Lake Meridian, Lake Wilderness, Pine Lake, and Beaver Lake host beginner-friendly races within easy reach of the city.

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Total Events

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Upcoming Events (10)

			WEBSITE		MAP	RACE TYPES
Feb 7, 2026	3 weeks and 2 days	Husky Winter Indoor Triathlon	Visit	Seattle, WA	Map	Sprint
Apr 19, 2026	13 weeks and 3 days	Pinnacle Peak Spring Duathlon	Visit	Enumclaw, WA	Map	SprintDuathlon
May 10, 2026	16 weeks and 3 days	Cedar River Triathlon	Visit	Maple Valley, WA	Map	Sprint
Jun 6, 2026	20 weeks and 2 days	Lake Wilderness Multisport	Visit	Maple Valley, WA	Map	OlympicSprintDuathlon
Jun 27, 2026	23 weeks and 2 days	Black Diamond Triathlon	Visit	Enumclaw, WA	Map	OlympicSprint
Jul 19, 2026	26 weeks and 3 days	Seafair Triathlon	Visit	Seattle, WA	Map	SprintYouth
Aug 1, 2026	28 weeks and 2 days	Lake Tye Triathlon	Visit	Monroe, WA	Map	OlympicSprintDuathlon+1
Aug 15, 2026	30 weeks and 2 days	Lake Meridian Triathlon	Visit	Kent, WA	Map	OlympicSprint
Aug 30, 2026	32 weeks and 3 days	Beaver Lake Triathlon	Visit	Sammamish, WA	Map	Sprint
Sep 6, 2026	33 weeks and 3 days	Rattlesnake Lake Triathlon	Visit	North Bend, WA	Map	Sprint

Showing 10 of 16 events

Training Resources

Local Triathlon Clubs

View all 7 →

Seattle Triathlon Group

Seattle, WA

Husky Triathlon Club

Seattle, WA

Triathlon Coaches

View all 11 →

Coach LeslySeattle, WA

PR PerformanceSeattle / Bellevue / Kirkland

Pauole SportSeattle, WA

Strong2theFinishlineSeattle, WA

Sound Training and RacingSeattle, WA

TN MultisportsSeattle, WA

Upcoming Events (10)

Husky Winter Indoor Triathlon

Pinnacle Peak Spring Duathlon

Cedar River Triathlon

Lake Wilderness Multisport

Black Diamond Triathlon

Seafair Triathlon

Lake Tye Triathlon

Lake Meridian Triathlon

Beaver Lake Triathlon

Rattlesnake Lake Triathlon

Training Resources

Local Triathlon Clubs

Triathlon Coaches