Main Menu
Search Contributors
Search Coaches

Journal

Community

Gear Reviews

Ask Trail Sisters

Where to Run

Contributors

Community

Team Trail Sisters

Trail Sisters Communities

Find a Local Group

Resources

Courses

Race Calendar

Trail Sisters Grants

Find a Coach

Women's Running Films

Events

Run with Her Retreats

Women's Trail Half Marathon

Lake Sonoma 50 & Marathon

Join the Team
Shop the Store
Communities

Login / Register

Instagram Facebook

Our Mission is to increase women’s participation and opportunity in trail running and hiking through inspiration, education and empowerment.

Quadzilla 15k Trail Race

Race Details

Trail Sisters Approved
July 20, 2025
Schnecksville
Pennsylvania
15K
Race Website
Race Registration

Race Director
Login to Claim Race

Feature-Race-Placeholder_40

Quadzilla is Lehigh Valley’s toughest trail race! The Beast RETURNS 2022, back on your heels, up, down & all around the Trexler Nature Preserve Border Trail. Gender specific tanks and tees are back too! Come earn your spot at the table where “WE EAT HILLS FOR BREAKFAST.”

Share This Race!

More Races

Feature-Race-Placeholder_40
Quadzilla 15k Trail Race
15K
July 20, 2025
Schnecksville
, Pennsylvania
Trail Sisters Approved
SOO-200-logo
SOO 200
200M
July 21, 2025
Sault Saint Marie
, Alberta
Trail Sisters Approved
IMG_2393
Crazy Mountain 100
100M
July 25, 2025
Lennup
, Montana
Trail Sisters Approved

Join Now

Team Trail Sisters

Find a Coach

Sarah Ter Har

Vuori Running

Los Angeles, 
California
View all Coaches

Watch Films

15 Hours with Magdalena-min

15 Hours with Magda Boulet

Magda Boulet

View Films

Our mission is to increase women’s participation and opportunity in trail running and hiking through inspiration, education and empowerment.

Journal

Community

Resources

Events

Store

About

Trail Sisters® is a registered trademark of Trail Sisters LLC | © 2024 Trail Sisters LLC

Privacy Policy | Terms of Service

Get the Newsie

Shop the Store
Join the Team
Add 1 race per line or separate with a comma.
$0.00

Claim Race

Heyo Race Director!

Once you’ve claimed your race allow 24-72 hours for our site admin to update the listing and transfer ownership to you. Once complete, you will receive an email notification and will be able to edit the race from your dashboard. 

Thank you!

Claiming races that are not yours will result in immediate termination of your account. 

Race Director Login

Create Race Director Account