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5K races in Eastside & South King (2026-27)
Updated
14 5k races are coming up in Eastside & South King in the next 90 days; the next is Juanita Unified 5K - Heroes in motion on Saturday, October 17 in Kirkland. 24 5k races are listed in Eastside & South King for the next 12 months.
All SeattleSeattle (city) (61)Eastside & South King (24)Snohomish County (14)Tacoma & South Sound (20)
By date
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Reg. closed
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Issaquah Schools Foundation Monster Mash 5K
Sat Oct 24 · 10:00 AM · Issaquah · Eastside & South King
5K
from $40 -
from $37
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from $50
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Cougar Mountain Trail Run Series (October)
Sat Oct 31 · 8:00 AM · Bellevue · Eastside & South King
5K7.6 miles19.5 miles50KTrail
from $40 -
from $30Goes up Nov 1
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8th Annual Maple Valley Turkey Trot: Thanksgiving Day 5K
Thu Nov 26 · 7:30 AM · Maple Valley · Eastside & South King
5K
from $45 -
Ten Trails Active Club 5k Turkey Trot
Thu Nov 26 · 8:30 AM · Black Diamond · Eastside & South King
5KTrail
from $10 -
from $35Goes up Oct 31
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from $35Goes up Nov 16
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from $30Goes up Nov 1
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from $38Goes up Nov 1
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from $20
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New Year's Day 5K & 8K and Prediction 5K & 8K
Fri Jan 1 · 10:00 AM · Auburn · Eastside & South King
5K8K
from $30Goes up Dec 11 -
Ten Trails Active Club Heartfelt Hustle
Sat Feb 13 · 8:00 AM · Black Diamond · Eastside & South King
5KTrail
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from $20Goes up Jan 1
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from $44Goes up Jan 8
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Snoqualmie Valley St. Patrick's Day Fun Run
Sun Mar 14 · 9:15 AM · Snoqualmie · Eastside & South King
5K
from $35Reg. closed -
from $15
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Kirkland Half Marathon & 5K
Sun May 2 · 7:30 AM · Kirkland · Eastside & South King
1K5KHalf marathon
from $15Goes up Nov 1 -
from $10Goes up Apr 22
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from $25Reg. closed
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from $37Goes up Nov 1
Quick answers
How many 5k races are in Eastside & South King in the next 3 months?
14 5k races are listed in Eastside & South King between October 17 and January 15. The next is Juanita Unified 5K - Heroes in motion on Saturday, October 17 in Kirkland.
What is the cheapest 5K in Eastside & South King right now?
Ten Trails Active Club 5k Turkey Trot on November 26 has the lowest listed entry fee in the next 90 days: $10. Prices are before the registration platform's processing fee.
When does the next early-bird price end for 5k races in Eastside & South King?
Issaquah Turkey Trot: the 5K goes from $35 to $40 after October 31. 10 more of these 5k races publish a later price increase.
Are there 5k races in Eastside & South King this weekend?
Yes, 1: Juanita Unified 5K - Heroes in motion (Sat).