Found 361 races

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OCT
11

Snohomish, WA
$50 -$115
Snohomish River Run – Sunday, October 11th Experience the magic of fall in the Pacific Northwest at the Snohomish River Run—where crisp autumn air, vibrant colors, and scenic river views come...
5K 10K Half Marathon Marathon
10
OCT
11

Spokane, WA
$45 -$150
Experience the natural beauty of the Inland Northwest, with a course that winds along the Spokane River, through pine forests, and on the scenic Centennial Trail.  Boston Marathon certified course.
10K Half Marathon Marathon
84
OCT
17

Pullman, WA
$10 -$45
The 2026 Race for Campus Safety will be held on October 17, 2026. Register early to take advantage of the early-bird rate for 2026! In 2025, we had over 1,000 participants come together as a...
1K 5K 10K
103
OCT
17

Richland, WA
$15
The Bethlehem Lutheran Fall Fest was started in 2000 by a group of parents, teachers, and school supporters. It is the main fundraising event for Bethlehem Lutheran School. Fall Fest has quickly...
5K
38
OCT
17

Everett, WA
$30 -$65
Parking Update:Parking has been moved to Rotary Park due to a course detour. Please park at the new location and follow signage to the start.  Race InformationThe race starts at 8:30 AM.Packet...
5K 10K Half Marathon
20
OCT
17

Pasco, WA
$30 -$65
Race InformationThe race starts at 8:30 AM.Packet pickup starts 30 minutes before the race and ends 10 minutes before the race starts.All runners must register on RunSignup. No on-site...
5K 10K Half Marathon
45
OCT
17

Kirkland, WA
$52 -$98
The Lake Washington Half marathon is a beautiful loop course that starts and finishes and Juanita Beach Park in Kirkland. See more details on the website here!  Earn the  R-Pod medal when you...
Half Marathon
44
OCT
17

Spokane, WA
$35
Join us for the 9th annual Socktober Dash benefiting Teen & Kid Closet! Bring the family and dress up in your favorite spooky costumes to take a run through Spokane's historic Greenwood Memorial...
5K
3
OCT
17

Seattle, WA
$30 -$45
Get excited for the 4th annual Where's Bigfoot 5k. Big·foot. /ˈbiɡfo͝ot/. noun 1.a large, hairy, ape-like creature resembling a yeti, supposedly found in northwestern America. Visit our FAQs:...
5K
42
OCT
18

Seattle, WA
$10 -$65
Run with the pack. Show your Purple Pride. Support UW students! Hit the road, Huskies! Lace up your sneakers and soak in the campus beauty for our annual 10K run and 5K run/walk. All Dawgs (and...
5K 10K
23
OCT
18

Seattle, WA
$20 -$75
I can and I will is the mantra Olivia and her mom, Alisa, have been saying since 2018. Whether it's prepping to be poked by a needle or running up a big hill, we remind ourselves that we can and...
1m 5K 10K
16
OCT
24

Seattle, WA
$35 -$55
October 24th, 2026 The Green Lake 5K & Wellness Festival Get ready for the ultimate blend of movement, community, and good vibes at the Green Lake 5K & Wellness Festival! This one-of-a-kind event...
5K
3
OCT
24

Olympia, WA
$30 -$65
Race InformationThe race starts at 8:30 AM.Packet pickup starts 30 minutes before the race and ends 10 minutes before the race starts.All runners must register on RunSignup. No on-site...
5K 10K Half Marathon
16
OCT
24

Issaquah, WA
$35 -$45
Help us raise a MONSTROUS amount of support for local students on October 24th! ISF Monster Mash 5K is a community-based, family-friendly event that raises funds for programs that serve students...
5K
5
OCT
24

Port Angeles, WA
$5 -$99
Salt Creek 24 Registration is OPEN! Peninsula Adventure Sports is thrilled to announce a new partnership with Rain Bear Running Club to bring you this year's Salt Creek 24. We couldn’t be more...
33
OCT
24

Sammamish, WA
Join us for the Sammamish City Marathon. New Course! Starting at Sammamish City Center (City Hall) running down the streets of Sammamish into the quaint neighborhoods for the home town feeling,...
2m 5K 10K Marathon
5
OCT
24

Seattle, WA
$20 -$45
This race is a costumed 5k trail run/walk and Kids Dash to support South Seattle College Cooperative Preschools.  Paid registration includes a t-shirt (all races) and bib with timing chip (5K...
5K
9
OCT
25

Seattle, WA
$40 -$65
Earn your candy at the 18th annual Run Scared, benefiting Blood Cancer United (formerly The Leukemia and Lymphoma Society) Choose from 10K, 5K or 2 mile walk or run.    Celebrate Halloween with a...
2m 5K 10K
35
OCT
25

Richland, WA
$25 -$200
The 43rd Annual Tri-Cities Marathon & Relay will be held Sunday, October 25, 2026!   Remembering Richard "Keith" Fuller. 1957-2025 1980 Tri-Cities Marathon Champion   Join us at the Riverfront...
5K Half Marathon Marathon
77
OCT
28

Black Diamond, WA
Join the Club! PLEASE READ ALL OF THIS Ghosts are running amuck in Ten Trails!!! Do you and your team of Ghost Chasers have what it takes to capture and return the ghosts to their resting place a...
7