ABOUT & CONTACT
MEET THE OWNERS
Randi and Michael Brantner are parents and former Spartan racers. They built Grit Club for kids, teens and adults who enjoy obstacles, including kids who haven’t found their place in traditional team sports.
When the previous ninja gym in this space closed, families lost a place to train and connect. Grit Club brings that community back to its Colorado Springs home.

RANDI BRANTNER
Owner
Randi leads enrollment, scheduling and finances. She has an MBA, is a Six Sigma Black Belt and brings experience as a dance instructor and youth coach.
MICHAEL BRANTNER
Owner
Michael is an Eagle Scout with experience in facilities, EMT supervision, wildland fire and incident command.
Commitment to Safety
Ninja and parkour are about trying hard things, and families should feel confident about who is coaching their kids and how. Here is what we do every day:
Screened, trained coaches.
Every coach passes a background screening, renewed every two years, and completes Colorado mandatory reporter training every year. Every coach is CPR, First Aid and AED certified and completes CDC HEADS UP concussion training.
Small classes.
No more than 10 athletes per coach in youth classes, and no more than 8 in our Movers and Minis classes for ages 2–5.
Step-by-step progressions.
Every athlete follows the Grit Club skill tree and moves up only when a coach sees them do each skill safely and consistently, no matter how much experience they bring.
Equipment checked every day.
Coaches walk the floor before every session, and our equipment is inspected weekly. Anything that needs repair is closed until it's fixed.
Ready for emergencies.
We keep an AED and first aid kits on site, follow a written emergency action plan, and practice our emergency drills. Any athlete with a possible head injury sits out and returns only with written clearance from a health care provider.
Protecting kids.
Coach interactions with athletes are always observable, and coaches communicate with minors only through Grit Club channels with a parent copied.
Contact Us
GET IN TOUCH
Grit Club Athletics
750 Garden of the Gods Rd, Suite 125
Colorado Springs, CO 80907
admin@gritclubathletics.com
By appointment for field trips, groups and private bookings:
Monday, Wednesday & Friday: 8:00 AM–1:00 PM
Tuesday & Thursday: 9:30 AM–1:00 PM
HOURS OF OPERATION
Monday
6:45–8:00 AM
4:15–7:30 PM
Tuesday
6:45–9:30 AM
4:15–8:00 PM
Wednesday
6:45–8:00 AM
1:00–2:00 PM · 4:15–8:30 PM
Thursday
6:45–9:30 AM
2:00–3:00 PM · 4:15–8:30 PM
Friday
6:45–8:00 AM
4:15–8:00 PM
Saturday
6:45–11:30 AM
Parties and events from noon, by booking
Sunday
Parties and events by booking
