Home / Denver & Boulder
Upcoming races near Denver
71 races in the next 90 days (through January 15) and 153 on the calendar for the next 12 months, across Denver, Boulder, the suburbs, the Foothills, and Fort Collins and Loveland. 32 races raise their price in the next three weeks.
Next 90 daysEarly-bird deadlinesThis weekend (5)By distance, season, month or area
Next 90 days
71 races through January 15
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from $60
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Reg. closed
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Reg. closed
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from $35
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The Great Trailhead Foot Race 5 & 10 Miler
Sat Oct 17 · 9:00 AM · Lakewood · Denver
5 miles10 milesTrail
Reg. closed -
Reg. closed
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from $25
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from $10Goes up Oct 19
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Apex Foundation Trick or Trot 5K & Halloween Hunt Powered by REP Fitness
Sat Oct 24 · 9:00 AM · Arvada · Denver Suburbs
1 mile5K
from $10Goes up Oct 24 -
McGraw Memorial Park "Quick Draw @ McGraw" 2.1 & 12.6 Mile Trail Races
Sat Oct 24 · 10:00 AM · Bailey · Foothills & Mountains
2 miles12.6 milesTrail
from $35 -
from $20
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from $36
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Halloween Trick or Trot Run 5K/10K/13.1 Denver/Aurora
Sat Oct 31 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
Reg. closed -
PB&J Fuel Run 5K/10K/13.1 Denver/Aurora
Sat Oct 31 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
Reg. closed -
from $15
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Hrca Backcountry Wilderness Half Marathon
Sat Oct 31 · 9:00 AM · Lone Tree · Denver Suburbs
Half marathonTrail
from $85Goes up Oct 27 -
from $45Goes up Oct 18
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from $25
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from $35Goes up Oct 31
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from $10Goes up Oct 31
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from $50Goes up Oct 19
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Turkey Trails- Denver
Sat Nov 7 · 8:00 AM · Littleton · Denver Suburbs
1 mile5K10KHalf marathonTrail
from $22Goes up Oct 19 -
City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)
Sat Nov 7 · 9:00 AM · Denver · Denver
5K10K
from $50Goes up Oct 31 -
12th edition Sole Mates 5k & Brew Fest presented by Shoes & Brews and Left Hand Brewing
Sat Nov 7 · 9:30 AM · Longmont · Fort Collins & Loveland
5K
from $60Goes up Nov 6 -
from $25Goes up Oct 26
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from $30Goes up Nov 7
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Run for Mental Health 5K/10K/13.1 Denver/Aurora
Sat Nov 14 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
Veterans Day Freedom Run 5K/10K/13.1 Denver/Aurora
Sat Nov 14 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
Salute to Veterans 5K/10K/Half Marathon - Denver
Sat Nov 14 · 8:00 AM · Aurora · Denver Suburbs
5K10KHalf marathon
from $15Goes up Nov 8 -
from $45
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from $15Goes up Nov 14
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Colorado State Youth Cross Country Championships
Sat Nov 14 · 9:40 AM · Aurora · Denver Suburbs
1.24 miles1.86 miles2.48 milesTrail
from $25.99 -
from $19Goes up Nov 12
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from $40Goes up Nov 1
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Turkey Trek (13.1, 10k, 5k & 2k)
Sat Nov 21 · 8:30 AM · Arvada · Denver Suburbs
2K5K10KHalf marathon
from $29Goes up Nov 1 -
from $35Goes up Nov 4
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from $36Goes up Nov 21
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from $20Goes up Nov 14
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Parker Parks and Recreation Turkey Day 5K FUN Run/Walk
Thu Nov 26 · 8:00 AM · Parker · Denver Suburbs
5K
from $38Goes up Nov 12 -
from $44Goes up Nov 14
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from $40Goes up Nov 1
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from $35Goes up Nov 1
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from $27Goes up Oct 26
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from $20Goes up Nov 14
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from $20Goes up Oct 31
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from $40Goes up Nov 21
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from $40Goes up Nov 11
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from $30Goes up Nov 26
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Coffee Lovers Run 5K/10K/13.1 Denver/Aurora
Sat Nov 28 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
Thanksgiving Gobble Trot Run 5K/10K/13.1 Denver/Aurora
Sat Nov 28 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
from $80Goes up Nov 17
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from $50Goes up Nov 22
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from $27Goes up Nov 16
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from $10Goes up Dec 5
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Run for Breast Cancer 5K/10K/13.1 Denver/Aurora
Sat Dec 12 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
Sunrise Marathon 5K/10K/13.1 Denver/Aurora
Sat Dec 12 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
from $35Goes up Nov 1
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from $25Goes up Nov 1
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from $35Goes up Nov 13
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from $40Goes up Nov 1
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from $6
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from $39Goes up Nov 1
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from $33Goes up Nov 16
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A Merry Christmas Run 5K/10K/13.1 Denver/Aurora
Sat Dec 26 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
New Year's Run 5K/10K/13.1 Denver/Aurora
Sat Dec 26 · 7:30 AM · Centennial · Denver Suburbs
1 mile5K10KHalf marathon
from $30 -
from $44Goes up Dec 1
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from $50Goes up Dec 27
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from $25Goes up Dec 30
No races match those filters in the next 90 days. Try another distance or area.
Early-bird prices ending soon
Register before these dates to pay less.
- Oct 18tomorrowI Ain't Scared (of 5k)5K: $45 → $50 · race Oct 31 · Thornton
- Oct 18tomorrowColorado Cold Snap5K: $39 → $44 · race Jan 17 · Louisville
- Oct 19in 2 daysRace to Cure Sarcoma Denver5K: $35 → $45 · race Oct 24 · Denver
- Oct 19in 2 daysAll-Out Kooky-SpookyHalf marathon: $80 → $85 · race Nov 1 · Golden
- Oct 19in 2 daysTurkey Trails- Denver5K: $40 → $44 · race Nov 7 · Littleton
- Oct 25in 8 daysAll-Out Beat the HeatHalf marathon: $65 → $70 · race Apr 24 · Westminster
- Oct 26in 9 daysExcel Eagle Trot 5K/1K Family Fun Run5K: $35 → $40 · race Nov 7 · Arvada
- Oct 26in 9 daysTurCreek Trot 5K5K: $27 → $30 · race Nov 26 · Greenwood Village
- Oct 27in 10 daysHrca Backcountry Wilderness Half MarathonHalf marathon: $85 → $95 · race Oct 31 · Lone Tree
- Oct 27in 10 daysTime Travel Half-Marathon/5K/10K - Denver5K: $32 → $36 · race Jan 30 · Westminster
- Oct 31in 14 daysFeet for Justice Run10K: $40 → $45 · race Nov 1 · Denver
- Oct 31in 14 daysRmrr November 5k/15k15K: $10 → $15 · race Nov 1 · Denver
- Oct 31in 14 daysCity Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)10K: $65 → $70 · race Nov 7 · Denver
- Oct 31in 14 daysAdventHealth Avista Louisville Turkey Trot5K: $20 → $30 · race Nov 26 · Louisville
- Nov 1in 15 daysThe Wash Park Circuit, Powered by New Balance2.25 miles: $40 → $45 · race Nov 15 · Denver
- Nov 1in 15 daysTurkey Trek (13.1, 10k, 5k & 2k)Half marathon: $74 → $79 · race Nov 21 · Arvada
- Nov 1in 15 daysGobble Wobble Run5K: $40 → $45 · race Nov 26 · Littleton
- Nov 1in 15 daysThe Great Turkey Chase5K: $35 → $40 · race Nov 26 · Golden
- Nov 1in 15 daysSanta Shuffle 5K5K: $35 → $40 · race Dec 12 · Littleton
- Nov 1in 15 daysSuperior Stocking Run5K: $35 → $40 · race Dec 12 · Superior
- Nov 1in 15 daysJingle Bell Run - Colorado5K: $45 → $50 · race Dec 13 · Denver
- Nov 1in 15 daysSanta's Dash for Ca$h5K: $39 → $44 · race Dec 19 · Denver
- Nov 1in 15 daysYeti Chase 5k/10k5K: $40 → $45 · race Jan 24 · Morrison
- Nov 1in 15 daysRalston Creek Half Marathon & 5kHalf marathon: $70 → $75 · race Feb 14 · Arvada
- Nov 1in 15 daysPlatte River Half-Marathon, Relay & 5kHalf marathon: $80 → $90 · race Apr 11 · Littleton
- Nov 1in 15 daysUnicorn 5k (North)5K: $41 → $46 · race Jun 19 · Thornton
- Nov 2in 16 daysOld Man Winter Bike Rally & Run5K: $49 → $55 · race Feb 7 · Lyons
- Nov 4in 18 days285 Turkey Trot0.75 miles: $35 → $40 · race Nov 21 · Bailey
- Nov 6in 20 days12th edition Sole Mates 5k & Brew Fest presented by Shoes & Brews and Left Hand Brewing5K: $60 → $65 · race Nov 7 · Longmont
- Nov 7in 21 daysDragon Dash 5K Run/Walk5K: $30 → $40 · race Nov 8 · Denver
- Nov 7in 21 daysAll-Out Mardi CrawlHalf marathon: $75 → $85 · race Feb 6 · Arvada
- Nov 7in 21 daysHighlands Ranch 5k5K: $43 → $48 · race Feb 28 · Highlands Ranch
This weekend
Weekend page →-
from $60
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Reg. closed
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Reg. closed
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from $35
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The Great Trailhead Foot Race 5 & 10 Miler
Sat Oct 17 · 9:00 AM · Lakewood · Denver
5 miles10 milesTrail
Reg. closed
Plan ahead near Denver
By distance
- 5K races near Denver132 upcoming
- 10K races near Denver73 upcoming
- Half marathons near Denver65 upcoming
- Marathons near Denver2 upcoming
- Ultramarathons near Denver1 upcoming
- Trail races near Denver29 upcoming
By season
- Fall 2026 races53 races, September to November
- Fall half marathons11 in Fall 2026
- Winter 2026-27 races37 races, December to February
- Winter half marathons18 in Winter 2026-27
- Spring 2027 races29 races, March to May
- Spring half marathons20 in Spring 2027
- Summer 2027 races26 races, June to August
- Summer half marathons11 in Summer 2027
By month
- October 202621 races
- November 202632 races
- December 202615 races
- January 202711 races
- February 202711 races
- March 20278 races
- April 202711 races
- May 202710 races
- June 20279 races
- July 20277 races
- August 202710 races
- September 20274 races