Class Schedule

Gymversary: Matt D(7)

Wednesday, Mar 4, 2026

6:00am
7:00am
8:00am
9:00am
3:45pmKIDS CLASS
5:00pm

Thursday, Mar 5, 2026

6:00am
7:00am
8:00am
9:00am
12:00pm
3:45pmKIDS CLASS
5:00pm

Friday, Mar 6, 2026

6:00am
7:00am
8:00am
9:00am

Saturday, Mar 7, 2026

9:00am

Monday, Mar 9, 2026

6:00am
7:00am
8:00am
9:00am
12:00pm
3:45pmKIDS CLASS
5:00pm

Tuesday, Mar 10, 2026

6:00am
7:00am
8:00am
9:00am
3:45pmKids Class
5:00pm
661-373-7430
Kalos Sthenos Fitness
26620 Valley Center Drive #105
Santa Clarita, CA 91351 (view larger map)


5.0

17 reviews

Sue Higgins


11 months ago

I discovered Kalos Sthenos Fitness on class pass about 2 years ago. When I walked in the owner, John asked my name and introduced me to the other members, I felt immediately welcomed. John really knows his stuff. When I have any aches or pains

Roxanne Blank


2 months ago

Update: Since joining Kalos Sthenos Fitness (aka KFS) 6 years ago, I’ve learned so much about fitness, nutrition and how to apply it in my daily routine. Coach John is very knowledgeable and guides his members with intentional and specialized p

Cynthia Schaefer


3 years ago

Kalos Sthenos Fitness has become an integral part of my daily routine. I have been working out at KSF for over 4 years now. Coach John is exceptional with his daily and weekly WOD’s (workout of the day). I am super dedicated and diligent to co

Jose Alonso


7 years ago

Coach John, Cheryl & Lauren makes this place my home away from home. Friendly members and atmosphere, we all have different levels of physical condition but we all inspire and push each other to meet our goals. They keep you on your toes! Exc

Syd Cole


2 months ago

I decided to write a review at the end of this year to help others in making a choice of where they may want to go for their New Year's Fitness journey. This is the place. Coach John Devitt is a MASTER in Health and Fitness and has tailored a pro