find Halloween events for every vibe.

Running events in Boulder, CO

Just added!
40th Annual Children's Hospital Colorado Toy Run
Sun, Dec 7, 8:00 AM
Aurora · Aurora Sports Park
Just added!
40th Annual Children's Hospital Colorado Toy Run
Sun, Dec 7, 8:00 AM
Aurora · Aurora Sports Park
Five Alarm 5k & Chili Cook-Off @ Bierstadt Lagerhaus
Sunday at 10:00 AM
Denver · Bierstadt Lagerhaus
Five Alarm 5k & Chili Cook-Off @ Bierstadt Lagerhaus
Sunday at 10:00 AM
Denver · Bierstadt Lagerhaus
Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA
Sat, May 2, 7:30 AM
Aurora · Piney Creek Hollow Park(Course Map will be emailed)
Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA
Sat, May 2, 7:30 AM
Aurora · Piney Creek Hollow Park(Course Map will be emailed)
MLK Freedom Run 5K/10K/13.1 DENVER/AURORA
Sat, Jan 17, 7:30 AM
Aurora · Piney Creek Hollow Park (Course Map will be emailed)
MLK Freedom Run 5K/10K/13.1 DENVER/AURORA
Sat, Jan 17, 7:30 AM
Aurora · Piney Creek Hollow Park (Course Map will be emailed)
Sales end soon
Tool / Linkin Park / Godsmack / Tribute Night @ Cheers
Saturday at 7:00 PM
Northglenn · @ Cheers
Sales end soon
Tool / Linkin Park / Godsmack / Tribute Night @ Cheers
Saturday at 7:00 PM
Northglenn · @ Cheers
Sales end soon
Odell Run Club
Tomorrow at 6:00 PM + 9 more
Fort Collins · Odell Brewing Company
Sales end soon
Odell Run Club
Tomorrow at 6:00 PM + 9 more
Fort Collins · Odell Brewing Company
Sales end soon
FREE SHOW FRIDAY HALLOWEEN COSTUME PARTY WITH THE GRIND
Friday at 7:00 PM
Northglenn · @ Cheers
Sales end soon
FREE SHOW FRIDAY HALLOWEEN COSTUME PARTY WITH THE GRIND
Friday at 7:00 PM
Northglenn · @ Cheers
CO Virtual Distance Challenge - 2025 Fall Edition (Run/Walk/Hike/Bike)
Wed, Oct 1, 12:00 AM
Denver · Denver
CO Virtual Distance Challenge - 2025 Fall Edition (Run/Walk/Hike/Bike)
Wed, Oct 1, 12:00 AM
Denver · Denver
Whitesnake / Shinedown Tribute Night @ Cheers
Sat, Nov 15, 7:00 PM
Northglenn · @ Cheers
Whitesnake / Shinedown Tribute Night @ Cheers
Sat, Nov 15, 7:00 PM
Northglenn · @ Cheers
Nearly full
Value Growth Summit
Thursday at 1:00 PM
Westminster · The Ranch Country Club
Nearly full
Value Growth Summit
Thursday at 1:00 PM
Westminster · The Ranch Country Club
Sales end soon
2nd Annual DarknessCon Vampire Ball (9pm - 2am, 18+)
Saturday at 9:00 PM
Northglenn · Delta Hotels Denver Thornton
Sales end soon
2nd Annual DarknessCon Vampire Ball (9pm - 2am, 18+)
Saturday at 9:00 PM
Northglenn · Delta Hotels Denver Thornton
Ron McMillon Press Toward The Mark Gospel Explosion Concert 2025
Sat, Nov 8, 7:00 PM
Thornton · Word Alive Church
Ron McMillon Press Toward The Mark Gospel Explosion Concert 2025
Sat, Nov 8, 7:00 PM
Thornton · Word Alive Church
DarknessCon Denver
Saturday at 9:00 AM
Northglenn · Delta Hotels Denver Thornton
DarknessCon Denver
Saturday at 9:00 AM
Northglenn · Delta Hotels Denver Thornton
Sales end soon
The Rocky Horror Drag Show & Screening (9pm - 2am, 18+)
Friday at 9:00 PM
Northglenn · Delta Hotels Denver Thornton
Sales end soon
The Rocky Horror Drag Show & Screening (9pm - 2am, 18+)
Friday at 9:00 PM
Northglenn · Delta Hotels Denver Thornton
Thanksgiving Turkey Gobble Trot 5K/10K/13.1 DENVER/AURORA
Sat, Nov 29, 7:30 AM
Aurora · Piney Creek Hollow Park (Course Map will be emailed)
Thanksgiving Turkey Gobble Trot 5K/10K/13.1 DENVER/AURORA
Sat, Nov 29, 7:30 AM
Aurora · Piney Creek Hollow Park (Course Map will be emailed)
Sales end soon
Weekly Saturday Morning Group Run
Saturday at 7:30 AM + 6 more
Littleton · Fleet Feet Littleton
Sales end soon
Weekly Saturday Morning Group Run
Saturday at 7:30 AM + 6 more
Littleton · Fleet Feet Littleton
Bike Flat Tire Repair Clinic
Thu, Nov 20, 6:30 PM
Arvada · 14715 W 64th Ave
Bike Flat Tire Repair Clinic
Thu, Nov 20, 6:30 PM
Arvada · 14715 W 64th Ave
Bob Seger / Steve Miller / Tribute Night @ Cheers
Sat, Nov 22, 7:00 PM
Northglenn · @ Cheers
Bob Seger / Steve Miller / Tribute Night @ Cheers
Sat, Nov 22, 7:00 PM
Northglenn · @ Cheers
@ Cheers Toy Drive / Mötley Crüe / The Grind /
Sat, Nov 29, 7:00 PM
Northglenn · @ Cheers
@ Cheers Toy Drive / Mötley Crüe / The Grind /
Sat, Nov 29, 7:00 PM
Northglenn · @ Cheers
St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA
Sat, Mar 14, 7:30 AM
Aurora · Piney Creek Hollow Park (Course Map will be emailed)
St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA
Sat, Mar 14, 7:30 AM
Aurora · Piney Creek Hollow Park (Course Map will be emailed)

Trends in Boulder

Explore more trends

40th Annual Children's Hospital Colorado Toy Run

40th Annual Children's Hospital Colorado Toy Run

Five Alarm 5k & Chili Cook-Off @ Bierstadt Lagerhaus

Five Alarm 5k & Chili Cook-Off @ Bierstadt Lagerhaus

Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA

Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA

MLK Freedom Run 5K/10K/13.1 DENVER/AURORA

MLK Freedom Run 5K/10K/13.1 DENVER/AURORA

Tool / Linkin Park / Godsmack / Tribute Night @ Cheers

Tool / Linkin Park / Godsmack / Tribute Night @ Cheers

Odell Run Club

Odell Run Club

FREE SHOW FRIDAY HALLOWEEN COSTUME PARTY WITH THE GRIND

FREE SHOW FRIDAY HALLOWEEN COSTUME PARTY WITH THE GRIND

CO Virtual Distance Challenge - 2025 Fall Edition (Run/Walk/Hike/Bike)

CO Virtual Distance Challenge - 2025 Fall Edition (Run/Walk/Hike/Bike)

Whitesnake / Shinedown Tribute Night @ Cheers

Whitesnake / Shinedown Tribute Night @ Cheers

Value Growth Summit

Value Growth Summit

2nd Annual DarknessCon Vampire Ball (9pm - 2am, 18+)

2nd Annual DarknessCon Vampire Ball (9pm - 2am, 18+)

Ron McMillon Press Toward The Mark Gospel Explosion Concert 2025

Ron McMillon Press Toward The Mark Gospel Explosion Concert 2025

DarknessCon Denver

DarknessCon Denver

The Rocky Horror Drag Show & Screening (9pm - 2am, 18+)

The Rocky Horror Drag Show & Screening (9pm - 2am, 18+)

Thanksgiving Turkey Gobble Trot 5K/10K/13.1 DENVER/AURORA

Thanksgiving Turkey Gobble Trot 5K/10K/13.1 DENVER/AURORA

Weekly Saturday Morning Group Run

Weekly Saturday Morning Group Run

Bike Flat Tire Repair Clinic

Bike Flat Tire Repair Clinic

Bob Seger / Steve Miller / Tribute Night @ Cheers

Bob Seger / Steve Miller / Tribute Night @ Cheers

@ Cheers Toy Drive / Mötley Crüe / The Grind /

@ Cheers Toy Drive / Mötley Crüe / The Grind /

St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA

St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA

Things to do around Boulder

Trends in Boulder

1. Halloween event

2. Halloween parties

3. Stand up comedy

4. Electronic music

5. Speed dating events

6. Live music

7. Halloween

8. Sound bath

9. Volunteer thanksgiving

10. Kids events today

11. Free yoga

12. Drag