Personal Trainer2018-11-26T09:08:20+00:00

Meet The Trainers

Kristen Karhio Personal Trainer
Kristen KarhioCo-Founder & Director of Training, Personal Trainer
CSCS, SFG, Agatsu Kettlebell & Mobility, ELDOA, USAW SP1, FMS, B.A.

From a small town in upstate New York, Kris­ten began play­ing sports early on and worked her way to becom­ing the New York State Track and Field cham­pion in the pen­tathlon (2000, 2002). She went on to earn a track scholarship to San Diego State University where she competed as a Div-1 Heptathlete.
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Dan BettcherCo-Founder & Director, Personal Trainer
RKC, CPT, PES, AFS, FMS, A.I.S. Therapist, M.S.

A veteran of 10+ years, Dan spent countless hours in the gym and competing in various athletic competitions. It wasn’t until he found kettlebells and Muay Thai that he figured out what being in shape really meant.
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Dan Bettcher
Brittany van Schravendijk Personal Trainer
Brittany van SchravendijkHead Kettlebell Sport Coach, Personal Trainer
CSCS, FRCms, SFG, Ketacademy, Agatsu Mobility, USATF, B.S.

Brittany is a Certified Strength & Conditioning Specialist by the NSCA and a USA Track & Field Level 1 Coach. She is a Master of Sport in kettlebell lifting and has been competing since October 2012. She learned how to lift kettlebells at one of the top Kettlebell Sport gyms in the United States.
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Chris ChamberlinNFPT Master Trainer, Personal Trainer

Chris believes success in fitness is found by creating a healthy learning environment for both coach and trainee. We are not here to just get in a good workout, but rather to learn from what our body tells us and to train accordingly.
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Chris Chamberlin Personal Trainer
Cobi Hopkins Personal Trainer
Cobi HopkinsACE Certified Personal Trainer

Cobi received his Bachelor’s degree from San Diego State University in Kinesiology. After years of endurance sports, Cobi challenged himself to improve his strength, and his passion for weightlifting grew into a career.
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Manny RomeroPersonal Trainer

Born and raised in San Diego, Manny has been involved with sports and exercise his entire life. For the last 6 years he has worked in the Human Performance/Fitness industry, working with hundreds of individuals from military, athletic, and corporate backgrounds.
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Manny Romero Personal Trainer
Gary Page Personal Trainer
Gary PageAce Certified Personal Trainer

Gary hails from Iowa and has had a long history of loving kettlebells. He has earned his Candidate for Kettlebell Master of Sport with Team KOR, and believes in working hard to achieve your goals.
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Tiffany LongcorACE Certified Personal Trainer

Although athletic most of her life, it took some college weight gain to inspire Tiffany to rediscover the joy in exercise. After self education and discipline, Tiffany started running again and shed 50 pounds, subsequently finding her passion for coaching others in fitness.
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Tiffany Longcor Personal Trainer
Robin Taylor Personal Trainer
Robin TaylorPersonal Trainer
CES, ACE Certified GFI, TRX Certified

After 15 years working in another industry, Robin finally gave into her passion for fitness and left to pursue personal training. Robin gained certifications in pre and post natal exercise, inspired by her own journey reintroducing herself to exercise after having her two kids.
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Sharon FeldmanGeneral Manager
B.S., M.S.

Sharon went from being a KOR member, to a part-time administrative assistant, to general manager. While working part-time at KOR, Sharon obtained her masters degree from USC in Consumer Psychology. After graduating, Sharon joined Team KOR full time as the General Manager. She fell in love with the gym, the staff, and of course – kettlebells!

Sharon Feldman General Manager


We have awesome programs, great services, fun classes, individualized attention and so much more!