How many triathlons are in Seattle?

There are 15 triathlon events listed in Seattle, with 8 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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Upcoming Events (8)

			WEBSITE		MAP	RACE TYPES
Apr 19, 2026	20 weeks and 1 day	Pinnacle Peak Spring Duathlon	Visit	Enumclaw, WA	Map	SprintDuathlon
May 10, 2026	23 weeks and 1 day	Cedar River Triathlon	Visit	Maple Valley, WA	Map	Sprint
Jun 6, 2026	27 weeks	Lake Wilderness Multisport	Visit	Maple Valley, WA	Map	OlympicSprintDuathlon
Jun 27, 2026	30 weeks	Black Diamond Triathlon	Visit	Enumclaw, WA	Map	OlympicSprint
Aug 1, 2026	35 weeks	Lake Tye Triathlon	Visit	Monroe, WA	Map	OlympicSprintDuathlon+1
Aug 22, 2026	38 weeks	Lake Meridian Triathlon	Visit	Kent, 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

Showing 8 of 15 events

Training Resources

Local Triathlon Clubs

View all 13 →

Husky Triathlon Club

Seattle, WA

Pauole Sport

Seattle, WA

PR Performance

Bellevue, WA

Seattle Triathlon Group

Seattle, WA

Sound Training and Racing

Seattle, WA

Strong2thefinishline

Bellevue, WA

Triathlon Coaches

View all 7 →

Pauole SportSeattle, WA

PR PerformanceSeattle / Bellevue / Kirkland

TN MultisportsSeattle, WA

Strong2theFinishlineSeattle, WA

Upcoming Events (8)

Pinnacle Peak Spring Duathlon

Cedar River Triathlon

Lake Wilderness Multisport

Black Diamond Triathlon

Lake Tye Triathlon

Lake Meridian Triathlon

Beaver Lake Triathlon

Rattlesnake Lake Triathlon

Training Resources

Local Triathlon Clubs

Local Triathlon Clubs

Triathlon Coaches

Triathlon Coaches