Meet our Personal Trainers at Laguna Niguel Racquet Club

Our personal trainers will assist you with your fitness goals, whether it is for improving your tennis or golf game, building muscles or simply for better health.  The personal trainers at Laguna Niguel Racquet Club are highly trained in their field.  Call today to schedule an appointment with one of her personal trainers today!

Photo of Stacey Tan-Horsch
Stacey Tan-Horsch
Director of Fitness, Head Trainer

Ph: (949) 922-2164

Stacey has over 25 years of experience as a personal trainer, and 20 years with Laguna Niguel Racquet Club. She graduated from Illinois State University with a Master Degree in Physical Education. Stacey is currently certified through ACE, ACSM, AAHFP, and CPR & AED certified. Stacey specializes in sports training, post rehabilitation routines, and weight management program incorporating functional training effectively into her regiment. Her hobbies are golf, tennis, cooking, and traveling.

Photo of Gregg Snow
Gregg Snow
Boot Camp Instructor

Snow is one of Orange County’s top Boot Camp Coaches and a disabled navy veteran. Snow’s high intensity interval training program promotes cardiovascular health resulting in a healthier, longer and happier lives.

Photo of Mattias Jacobsson
Mattias Jacobsson
Certified Nutritionist/Training Consultant
Mattias is a certified nutritionist & training consultant from Sweden. He is certified through European Health & Fitness Association. He was an elite gymnast and competed in Muay Thai fighting. Mattias is also a certified piloxing and boot camp instructor.
Photo of Mike Marowitz
Mike Marowitz
Personal Trainer

Mike grew up in Laguna Niguel and played football in college at Kansas Wesleyan University. He has been in the fitness industry for over 5 yrs. He is NCSF certified and he specializes in metabolic training, sports specific training, bodybuilding, and post-rehab training.

Photo of Kathleen Lavin
Kathleen Lavin
Personal Trainer


Kathleen has 24 years experience, is certified through the American Council of Exercise, holds a BA degree from the University of San Diego, U of Florida Spinal Rehabilitation, & TRX.  She specializes in corrective and rehabilitative training, weight management, and neck and back stabilization.

Photo of Kristin Lederer
Kristin Lederer
Personal Trainer


Kristin is certified through the National Academy of Sports Medicine (NASM) as a personal trainer with specializations in Corrective Exercise and Weight Loss Management.  She earned a BA degree from the University of California at Santa Barbara. In addition to maintaining proper fitness in the gym, she is also passionate about living an active lifestyle by running, surfing, practicing yoga, and biking.

Photo of Johanna DiFranchesco
Johanna DiFranchesco
Personal Trainer


Johanna is certified through the International Sports Sciences Association; the CHEK Institute as an Exercise Coach and a Holistic Lifestyle Coach; the Total Gym Gravity Training System (GTS) as a Strength Training and Pilates instructor, and have a Bachelor in Biology and Master’s in Psychology. This enables her to better understand personally how the body reacts to diet, strength and the psychology behind it. Johanna won first place in the Master’s Over 45 category in 2006. Her mission is to help her clients to understand how the body, mind, and food work together to enhance a better lifestyle.

Photo of Craig Hartley
Craig Hartley


Craig has been focused on strength and conditioning since his high school days back in The Woodlands, Texas. He pursued his athletic dreams in college, but chose an academic approach to his future as well at Occidental College. Upon Graduation, the opportunity to be a professional athlete took him around the world and exposed him to several styles and philosophies of strength and conditioning.  He used these experiences to develop his own individual approach to training.

Photo of Scott Rogowski
Scott Rogowski
Personal Trainer

(949) 496-4665

After working as a physical therapist for 6 years.  Scott obtained his Masters degree in Kinesiology, specializing in sports performance and human movement.  Scott has worked with athletes on the PGA, LPGA, MLB, AVP, NFL, and NBA.  Scott also worked for the LA Galaxy for 2 years and trained athletes on the 2012 US Olympic team and South Korean team as well as teams in the BIG 10 Conference while in college.  He was also a consultant for the Biggest Loser.  Scott is a certified Strength and Conditioning Coach and Personal Trainer by NSCA and is certified by the Titleist Performance Institute (TPI).

Photo of Daisy Renteria
Daisy Renteria
Group Exercise Instructor/Personal Trainer

Daisy is a certified personal trainer through the National Academy of Sports Medicine (NASM) as well as CPR and AED certified, specializing in functional whole body training. Forever a student in life and enjoying an active lifestyle, you can find Daisy playing beach volleyball, hiking, and exploring nature.”

Photo of Katie Salerno
Katie Salerno
Personal Trainer

Katie Salerno is certified with ACE, NASM and EGOSCUE. She is also a licensed Holistic Health Practitioner and Bodyworker, Trained at Healing Hands School 1000 Hour program. Katie began her fitness career in 1992. Her focus is on a holistic approach to health blending exercise, clean eating, flexibility, and stress management. Katie’s expertise is in nutritional counseling, weight management, advanced stretch and flexibility sessions, Pre and Post Natal Training, Senior and Youth fitness, Post Rehab Training, and Balance and Core Training.

Photo of Joanna Smith
Joanna Smith
Personal Trainer

Joanna is a NASM Certified Personal Trainer.  She grew up in Laguna Niguel and has been a longtime member of Laguna Niguel Racquet Club. She played four years on a full tennis scholarship at Arizona State University, while completing her Bachelor’s degree in Psychology and a Master’s degree in Sports Law and Business.  She not only enjoys working with adults on their fitness journey, but she loves training youth athletes as well.  When working with clients, she likes to focus on exercise and nutrition, as she believes both go hand in hand when setting and reaching fitness goals.  In her spare time, she loves weight training, hiking, and competing in Spartan Races.

Photo of Luis Velazquez
Luis Velazquez
Personal Trainer

Personal Trainer and Nutritionist Luis is certified through the National Academy of Sports Medicine. After completing his B.S. in Dietetics and Nutrition, he moved on to open and operate 3 different fitness clubs in the Chicago and Orange County areas. He focuses on an efficient program incorporating strength training, flexibility, and injury prevention techniques. He is also co-owner of a 5 Day Weight Loss Program that’s shown tremendous results in just 5 days!

Photo of Jason Bukich
Jason Bukich

Jason is a black belt (Baret Yoshida) with 15 years BJJ and 25 years martial arts experience. Jason has a pro MMA record of 4-0, all by way of submission. His training is dedicated to mental, physical, and spiritual development through martial arts training

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