About CrossFit Sirius

Mission Statement:

Our mission at CrossFit Sirius is to deliver sustainable high-level fitness to everyone by providing excellent and caring coaching in a welcoming and safe environment to a diverse community, thereby fostering success beyond our members’ expectations.

Dan Klein (Head Coach)

CrossFit L1 Coach, CrossFit Olympic Weightlifting

Coach Dan has been involved with CrossFit since 2007. After years of competing in various sports including competitive soccer, track and field, and football, Dan successfully earned a BA in History and Political Science from the University of California at Santa Barbara followed by a Master of Sciences from the London School of Economics. Dan left law school to pursue his passion for fitness by becoming a certified personal trainer. Dan saw firsthand how many trainers employ antiquated bodybuilding methods to train their clients with little success. His search for a universal and successful training methodology and program ended when he found CrossFit. Coach Dan spent 3 years training and studying under some of the best CrossFit coaches and movement specialists in the heart of where CrossFit started, Northern California. He has not looked back since and absolutely loves coaching and training, especially those new to CrossFit and fitness.

Kasey Calbow (Director of Training)

CPT American Council of Exercise

Coach Kasey capitalized on his genetic potential for athleticism through hard work and dedication, making him a very successful football player and track athlete. Kasey lettered in 4 track and field events as a freshman at the University of Texas at Tyler. He earned his Bachelor of Sciences in Kinesiology and is currently a candidate for his Doctorate of Chiropractics. Coach Kasey has managed and run numerous athletic departments and programs. He is very passionate about training kids and young athletes. Kasey also specializes in Sports Performance training and high intensity interval training. When not training or managing CrossFit Sirius, Kasey can be found out on a Texas lake bass fishing.

Alison Franco (Part-time Coach) 

(CrossFit L1 Candidate)

Coach Franco has been an athlete her entire life. She played softball for many years and was also the team captain of her high school wrestling team. After graduating from The University of Texas at Austin with a degree in Advertising, Alison moved to Dallas to begin her career. It was soon thereafter that she stumbled across her first CrossFit class and fell in love. CrossFit became her getaway from daily stresses, her confidence booster and her track to a healthy lifestyle. She loves sharing this feeling with others, teaching people that their body is capable of amazing things and that we all have the power to achieve our goals, whatever they may be.

Jon Nicholson (Part-time Coach)

CrossFit L1 Coach, CPT World Instructor Training Schools

Coach Jon battled years of chronic stomach surgeries and pain but never lost sight of his potential. After finally being medically cleared to train, Jon found CrossFit and has worked diligently to achieve his goal of competing in the sport of CrossFit. Jon is also an excellent bowler.