Found 189 races near Snohomish County, WA

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OCT
3

Maple Valley, WA
• 45.7 miles
$36 -$100
Experience the beauty of Maple Valley with a race designed for speed and serenity. This fast, flat, and scenic course offers runners the perfect blend of challenge and tranquility, winding...
5K Half Marathon
33
OCT
3

Seattle, WA
• 35.8 miles
$30 -$55
The Seattle Kraken 5K presented by Virginia Mason Franciscan Health (VMFH) will take place Saturday October 3rd at Green Lake Park in Seattle. Proceeds from the event benefit the Kraken Hockey...
5K
31
OCT
4

Poulsbo, WA
• 37.2 miles
$58 -$105
The Poulsbo Half Marathon/10k has a beautiful new loop course that takes you through "Little Norway". It will feature chip timing, a participant's shirt, finisher's medal, and free race photo...
10K Half Marathon
41
OCT
10

Tacoma, WA
• 60.9 miles
$62 -$262
The Defiance 50K, 30K, 15K & 3-Person 50K Relay is a scenic race that takes runners through the beautiful trails of Point Defiance, with over 700 acres of old growth forests and panoramic views...
15K 30K 50K
4
OCT
10

Everett, WA
• 24.5 miles
$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
13
OCT
10

Seattle, WA
• 39.9 miles
$39 -$64
The Night Nation Run is the World’s first Running Music Festival the ultimate blend of a Music Festival and a Fun Run. Experience a music filled course with Live DJs, Bubble Zones, Light Shows,...
14
OCT
11

Redmond, WA
• 30.1 miles
$2 -$41
🦸 CAPES ON. COSTUMES READY. WASHINGTON — IT'S TIME TO UNITE. 💚 Hope & Heroes Run is Washington State's first-ever PANS/PANDAS awareness run — created to shine a light on a neuropsychiatric...
5K 10K
OCT
11

Seattle, WA
• 30.0 miles
$12 -$64
New for 2026: We will have a big pumpkin festival going on during the event. We will have games, face painting, and more! We are also adding a .25 mile stroller dash. This race is perfect for the...
1m 5K 9K
73
OCT
11

Snohomish, WA
• 48.3 miles
$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
17

Everett, WA
• 21.5 miles
$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

Kirkland, WA
• 30.7 miles
$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

Seattle, WA
• 35.4 miles
$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
• 39.4 miles
$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
• 35.8 miles
$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
• 35.8 miles
$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

Issaquah, WA
• 34.1 miles
$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

Sammamish, WA
• 55.4 miles
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
• 45.3 miles
$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
• 40.0 miles
$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
28

Black Diamond, WA
• 50.3 miles
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