Seafair Triathlon

Event Overview

Welcome to the 2025 Seafair Triathlon!

Seattle's only triathlon will once again take place on the shores of Lake Washington at Seward Park. Offering participants multiple disciplines on a flat, fast and picturesque triathlon course in the shadows of downtown Seattle. This race is a must do for all triathletes in the northwest.

The event offers participants a unique opportunity to participate in a sprint distance triathlon or super sprint distance in an urban setting. Swimming in a protected cove, riding on closed roadways and running through Seward Park, this is the Pacific Northwest's premier triathlon.

Offering a Kids Triathlon as well, there is a distance for everyone in the family at the Seafair Triathlon! Join us in July for the 2025 Seafair Triathlon with over 1,500 health enthusiasts taking part in the event.

Course Description & Map

**Race Distances**

**Sprint Distance Triathlon** – 0.5 mile swim, 20K bike ride, 5 Kilometer run

**Sprint Duathlon** – 20K bike ride, 5 Kilometer Run

**Sprint Distance Relays** – Same as the sprint course

**Super Sprint Distance Triathlon** – 0.25 mile swim, 20K bike ride, 5 Kilometer run

**Kids Long Course** – 100-yard swim, 2-mile bike ride, 1-mile run

**Kids Short Course** – 50-yard swim, 1-mile bike ride, 0.5 – .75 mile run (swim in water kids can touch in)

Schedule

Saturday, July 19

What: Saturday Pre-Race Packet Pickup & Body Marking

Where: Seward Park

Time: 12:30pm – 4:30pm

Sunday, July 20 – RACE DAY!

5:30a.m. – Transition Zone Opens

6:00a.m. – Race Day LATE packet pickup & body marking begins

7:00a.m. – Sprint Triathlon Course Start

7:21a.m. – Sprint Relay Team Swim Start

7:35a.m. – Duathlon Bike Start

7:48a.m. – Super Sprint Course Start

10:30a.m. – Kids Short Course Start

11:00a.m. – Kids Long Course Start

Registration & Pricing

$85 for Sprint Triathlon, $80 for Super Sprint Triathlon, $95 for 3 Person Sprint Relay, $90 for 2 Person Sprint Relay, $70 for Sprint Duathlon, $30 for Kids Triathlon - Long Course, $30 for Kids Triathlon - Short Course.

Packet Pickup Details

Packet pickup will be available on Saturday, July 19 from 12:30pm to 4:30pm at Seward Park.

What to Bring

Participants should bring their race bib, body marking, and any personal items needed for the race.

Race Day Info

Race day will include a transition zone opening at 5:30 a.m. and various race starts throughout the morning.

Awards & Categories

No Awards Ceremony in 2024 – All awards/finisher certificates will be electronic and downloadable.

Parking & Transportation

Parking details will be provided closer to the event date.

Contact Information

For questions, participants can contact the race director through the race website.

Cancellation Policy

Refund policy details can be found on the race website.