Found 291 races

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OCT
18

Tualatin, OR
• 128.5 miles
$35 -$45
The Regatta Run/Walk 5K is the perfect Tualatin Harvest event! It is held in conjunction with the West Coast Giant Pumpkin Regatta on Sunday, October 18! The course is flat, fast, and friendly...
0m 5K
8
OCT
18

Seattle, WA
• 37.9 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

Vancouver, WA
• 115.2 miles
$50 -$108
THE GIRLFRIENDS AND PINK BRIGADE HAVE RAISED OVER $900,000 OVER THE LAST 18 YEARS!The 20th Annual Girlfriends Run offers a Half Marathon, 10K & 6K designed specifically for women to get together...
6K 10K Half Marathon
66
OCT
18

Seattle, WA
• 33.0 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
• 33.0 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
• 46.1 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
• 44.6 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

Portland, OR
• 121.0 miles
$40 -$125
Get into the spooky spirit this Halloween running along a riverside Oregon course full of boo-tiful costumes, colorful candy, and having a frightfully fun time!
5K 10K Half Marathon
1
40
OCT
24

Seattle, WA
• 42.3 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
• 42.6 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
25

Richland, WA
• 71.0 miles
$25 -$200
Join us as we celebrate another exciting year of endurance, community, and achievement at the 43rd annual Tri-Cities Marathon! Runners of all levels are invited to take part in this long-standing...
5K Half Marathon Marathon
77
OCT
28

Black Diamond, WA
• 62.0 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
OCT
31

Bellevue, WA
• 39.8 miles
$40 -$100
Welcome to the 2025 edition of the Cougar Mountain Trail Run Series, put on by Seattle Running Club and Northwest Trail Runs. Our events support King County Parks, with a portion of every entry...
5K 7m 19m 50K
13
OCT
31

Puyallup, WA
• 66.4 miles
$35 -$50
We’re back from the beyond for the Haunted Hustle 5K & 10K Run/Walk—a fun, costume-themed, non-timed, and family-friendly Halloween tradition! Come dressed for fun, grab your friends, and kick...
5K 10K
8
OCT
31

Seattle, WA
• 33.0 miles
$30 -$43
Annual Trick or Treat 5k!  Join us for a spooktacular time at the Trick or Treat 5k ! Lace up your running shoes and get ready for a ghoulishly fun event at Green Lake Park . Whether you're a...
5K
36
OCT
31

Tacoma, WA
• 61.1 miles
$15 -$77
Continuing the Halloween 5K tradition here in Tacoma we have added a 10k distance to the event! The Wicked Fast 5K & 10k registration will include t-shirts and Halloween themed medals that are...
1K 5K 10K
4
NOV
8

University Place, WA
• 62.7 miles
$43 -$93
Loops will be an incredibly enjoyable experience while simultaneously basking in the breathtaking panoramic views of the magnificent Bay! This sensational running trail allows participants to...
5K 10K Half Marathon
43
NOV
14

Richland, WA
• 70.3 miles
$10 -$25
The 51st Columbia River Classic 10Mile & 2 Mile Run Presented by:  3 Rivers Road Runners Sponsored by: FotoRuby, Atomic Ale, Eastern Oregon timing, SunWest Sportswear   Races:  We have a 2-mile...
2m 10m
32
NOV
15

Tacoma, WA
• 66.0 miles
$35 -$45
Date: Sunday, November 15thLocation: Pipeline/Orange Trail: 84th and Pipeline Road Time: 9:10  AM  Packet Pick -up November 15th 8 - 8:45 AM ( time and date may be adjusted ) Join us for the...
5K
5
NOV
21

Carnation, WA
• 46.3 miles
$5 -$40
Gather your flock and join us for our 4th Annual Carnation Turkey Trot at the beautiful Remlinger Farms in Carnation, Washington. You will be joining fellow runners, joggers and walkers in some...
5K
2