Permanently CLOSED.

To the Vacaville/Fairfield community, the American Ninja Warrior, Parent’s & Kids. Thank you for all of your support and encouragement in the growth of Stone Core Ninja Fitness. These past 10 years have been an amazing journey and experience working with so many kids and athletes. Like we say in the U.S. Navy, “it’s not about where the journey takes you, but what it ultimately makes you!”

Former Owner/Head Coach, & Military Combat Veteran Phil “Stone Core Ninja” Jamison

Stone Core Ninja Fitness

Military Veteran Owned!

Holistic Youth American Ninja Warrior Style Training.

Why train here?

Boost your Fitness


Mindful Training


Core strength


Let’s Get Started

Fill Out a Waiver Below!

What happens tomorrow starts today!

Come visit us!

SUNDAY: For Birthday Parties Only
Monday: 4:30pm-7:45pm
TUESDAY: 3:30pm – 7:00pm
WEDNESDAY: Birthday Parties Only
THURDAY: 3:30pm – 7:00pm
FRIDAY: For Birthday Parties Only
SATURDAY: 10:00 am-12:00 pm

At Stone Core Ninja Fitness, we offer a genuine fitness experience inspired by the TV show, The American Ninja Warrior. Come join our team and live your dream!

Call or Text us (707) 450-7802 821 Texas Street, Fairfield California, 94533
“Parking lot is in the back. Come in through the back door.”