Book Your Free Intro Class
Arrive 5 minutes early to any class to sign a waiver. Wear workout clothes and bring a waterbottle. Your first workout is FREE!
Arrive 5 minutes early to any class to sign a waiver. Wear workout clothes and bring a waterbottle. Your first workout is FREE!
Our coaches will show you around, answer all your questions, and modify the workout to your physical ability. No base fitness required!
If you like it (which we know you will) we will set up three one-on-one sessions with a coach to learn the basics. Learn more about New Member Onboarding.
Show up, make friends, and enjoy the benefits of having a fitness community working toward common health goals.

At Certus CrossFit, we believe fitness should feel like home. Our gym is a place where you’re welcomed, supported, and challenged—where fun and hard work go hand in hand. We prioritize moving well first, teaching safe and efficient mechanics so you can work out with confidence and longevity.
Our world-class coaches don’t just lead workouts—they coach with intention, providing real feedback, real progressions, and real care for every person who walks through our doors. Whether you’re brand new or highly experienced, Certus is a place to grow, to belong, and to enjoy the process of becoming stronger together.





Looking for a WOD while visiting town? No need to call or email ahead of time. Sign up ahead of time and choose your class using the link below.

Bachelors of Science, Kinesiology, California State University, Fresno
CCFT, CrossFit Level 3 Trainer
Precision Nutrition Level 2, Certificate in Nutrition & Change Psychology

CrossFit Level 2 Trainer
CrossFit Kids Trainer
CrossFit Weightlifting Trainer

Bachelor of Science, Health and Exercise Science, University of Oklahoma
CrossFit Level 2 Trainer
CrossFit Rowing Trainer

CrossFit Level 2 Trainer

Associates in Kinesiology, Fresno City College
Associates for Physical Therapist Assistant, IOT
NASM CPT
CrossFit Level 3 Trainer

CrossFit Level 2 Trainer

CrossFit Level 2 Trainer
CrossFit Kids Trainer

CrossFit Level 1 Trainer

CrossFit Level 1 Trainer