Personal Trainers
Tammy Thomas
- AFAA Group Exercise Certified, Red Cross – CPR Certified
- AFAA – Personal Training, Pilates Certified, Yoga Certified, Kickboxing and Spin Certified
- CrossFit Level Trainer 1, 2
- CrossFit Kids Certified
- B.S. in Business Management, University of Phoenix, 2000
Tammy has proudly owned and operated Davis Swim & Fitness since 2005, creating a space where individuals and families can pursue health, wellness, and connection. In 2014, she expanded the club and added Yolo CrossFit/ Yolo CrossFit Kids which was later changed to strength and conditioning programs, further deepening the club’s commitment to lifelong fitness for ALL ages.
As a woman-owned and operated business rooted in Davis, DSF has grown alongside its community—adapting, evolving, and staying resilient through every season and every obstacle.
“Davis Swim & Fitness is a community-driven health club dedicated to helping individuals and families get fit, stay healthy, and feel supported. We provide a welcoming, inclusive environment that goes far beyond a traditional corporate gym experience—offering personalized service, family-focused amenities, and a true sense of belonging.
Owner & Director
davisswimandfitness@gmail.com
Personal Trainer
Lelchuk8@gmail.com
847-504-6854
Allison Lelchuk
- B.S. in Kinesiology, Sacramento State
- Background in biomechanics, anatomy, and exercise science
- 4+ years of fitness and training experience
- Focused on strength and muscle development
My goal is to help you build a positive, lasting relationship with fitness that feels enjoyable, sustainable, and empowering. I believe movement should feel good and become a rewarding part of your life. Whether you’re building strength, improving mobility, or creating healthier habits, I’m here to help you reach your goals safely and effectively. I’m a Sacramento State kinesiology graduate with a strong foundation in biomechanics, anatomy, and exercise science. With over four years of fitness experience, I use science-based methods and a supportive approach to make training fun, motivating, and personalized to you.
Gabriel McKinney
- Crossfit Level 1 Trainer
- 10+ years of self-training
- 2+ years of training others
- competitive bodybuilding
I Believe that working out and fitness should leave you feeling better in your body and more capable at extreme ranges of motion. As your personal trainer, i can provide the necessary coaching and knowledge to safely push your body to new heights and abilities, bulletproofing your body against injury and giving you the best feeling in your own body
Personal Trainer
mckinney.gabriel97@gmail.com
Contact: 530-302-6266
Arwen McCullough
- NASM Certified
- Professional Baseball Player in the Women's Pro Baseball League
- 8+ years of weightlifting experience
- BS in Sports Management
I’m a professional baseball player and NASM-Certified Personal Trainer passionate about helping people build strength that translates into real-world and athletic performance. My training philosophy focuses on developing functional strength, power, mobility, and resilience so you can move better, perform better, and feel more confident both inside and outside the gym. My goal is to provide a supportive and challenging environment where clients can build confidence, develop sustainable habits & improve the way your body moves. No matter where you’re starting from, I’m committed to helping you become stronger, more athletic, and more capable in every aspect of life.
Personal Trainer
925-329-9842
mcculla925@gmail.com
Carolina Wonder Ehrlich
- NASM- Certified Personal Trainer
- Nutrition Coach and Corrective Exercise Specialist
- Pre/Postpartum Fitness Specialist
- Running Coach Certified
- Yoga Instructor
- 200 HR Barre Instructor
Carolina is an E-RYT 200 HR yoga teacher. She began practicing yoga in 2003. She devoted years to studying Ashtanga yoga before focusing on exercise science. She is presently studying with the National Academy of Sports Medicine to become a Corrective Exercise Specialist. She is honored to have studied extensively with Kino MacGregor, Tim Feldmann, Ken “Anand” von Roenn III and Kory Scheffer. Her husband and two wonderful children are her dearest teachers and her inspiration to share yoga with the world
Personal Trainer & Instructor
530-760-7543
Carolinawonderyoga@gmail.com
Personal Trainer
Lelchuk8@gmail.com
847-504-6854
Allison Lelchuk
- B.S. in Kinesiology, Sacramento State
- Background in biomechanics, anatomy, and exercise science
- 4+ years of fitness and training experience
- Focused on strength and muscle development
My goal is to help you build a positive, lasting relationship with fitness that feels enjoyable, sustainable, and empowering. I believe movement should feel good and become a rewarding part of your life. Whether you’re building strength, improving mobility, or creating healthier habits, I’m here to help you reach your goals safely and effectively. I’m a Sacramento State kinesiology graduate with a strong foundation in biomechanics, anatomy, and exercise science. With over four years of fitness experience, I use science-based methods and a supportive approach to make training fun, motivating, and personalized to you.
Personal Trainer
mckinney.gabriel97@gmail.com
Contact: 530-302-6266
Gabriel McKinney
- Crossfit Level 1 Trainer
- 10+ years of self-training
- 2+ years of training others
- competitive bodybuilding
I Believe that working out and fitness should leave you feeling better in your body and more capable at extreme ranges of motion. As your personal trainer, i can provide the necessary coaching and knowledge to safely push your body to new heights and abilities, bulletproofing your body against injury and giving you the best feeling in your own body
Arwen McCullough
- NASM Certified
- Professional Baseball Player in the Women's Pro Baseball League
- 8+ years of weightlifting experience
- BS in Sports Management
I’m a professional baseball player and NASM-Certified Personal Trainer passionate about helping people build strength that translates into real-world and athletic performance. My training philosophy focuses on developing functional strength, power, mobility, and resilience so you can move better, perform better, and feel more confident both inside and outside the gym. My goal is to provide a supportive and challenging environment where clients can build confidence, develop sustainable habits & improve the way your body moves. No matter where you’re starting from, I’m committed to helping you become stronger, more athletic, and more capable in every aspect of life.
Personal Trainer
925-329-9842
mcculla925@gmail.com
Carolina Wonder Ehrlich
- NASM- Certified Personal Trainer
- Nutrition Coach and Corrective Exercise Specialist
- Pre/Postpartum Fitness Specialist
- Running Coach Certified
- Yoga Instructor
- 200 HR Barre Instructor
Carolina is an E-RYT 200 HR yoga teacher. She began practicing yoga in 2003. She devoted years to studying Ashtanga yoga before focusing on exercise science. She is presently studying with the National Academy of Sports Medicine to become a Corrective Exercise Specialist. She is honored to have studied extensively with Kino MacGregor, Tim Feldmann, Ken “Anand” von Roenn III and Kory Scheffer. Her husband and two wonderful children are her dearest teachers and her inspiration to share yoga with the world
Personal Trainer & Instructor
530-760-7543
Carolinawonderyoga@gmail.com
Personal Trainer
Foley.sc@gmail.com
Conor Foley
- BS Kinesiology (CSUS)
- NSCA CSCS
- NASM CPT D and Nasm Ces
- Performance Enhancement specialization
- Behavioral Coach
- Lifespan Specialist
- Certified Nutrition Coach
I’m a long-term Davis resident who took a brief break to live in Sacramento and get my degree in Kinesiology. I’m a DHS class of 2005 alumni married to a 2007 DHS alum. We have two small girls, ages 4-7, whose varied sports schedule and social lives occupy most of our free time. I have been a Strength and Conditioning Coach since 2012 and before that was a CrossFit instructor at the Davis Athletic Club in 2008. I’ve worked with a variety of individuals from many sports and all walks of life but currently specialize in training youth athletes and active adults. I’m the strength and conditioning coach for the Davis Legacy soccer club and I consult with many youth sports coaches to ensure their players are playing at their highest level.
Hannah Tyndall
- BA English + education minor (UC Davis)
- MA Education (UC Davis)
- NASM certified personal trainer
- CPR/AED Certified
I have always had a strong passion for fitness and health which i am excited to share with my clients at dsf! I have been weight training since 2014 and it quickly became such a crucial part of my life that i decided to earn my personal training certification in 2020. as your personal trainer, i hope top guide and motivate you toward reaching your own fitness goals.
Personal Trainer
htyndall1990@gmail.com
Contact: 661-466-7727
Personal Trainer
Foley.sc@gmail.com
Conor Foley
- BS Kinesiology (CSUS)
- NSCA CSCS
- NASM CPT D and Nasm Ces
- Performance Enhancement specialization
- Behavioral Coach
- Lifespan Specialist
- Certified Nutrition Coach
I’m a long-term Davis resident who took a brief break to live in Sacramento and get my degree in Kinesiology. I’m a DHS class of 2005 alumni married to a 2007 DHS alum. We have two small girls, ages 4-7, whose varied sports schedule and social lives occupy most of our free time. I have been a Strength and Conditioning Coach since 2012 and before that was a CrossFit instructor at the Davis Athletic Club in 2008. I’ve worked with a variety of individuals from many sports and all walks of life but currently specialize in training youth athletes and active adults. I’m the strength and conditioning coach for the Davis Legacy soccer club and I consult with many youth sports coaches to ensure their players are playing at their highest level.
Personal Trainer
htyndall1990@gmail.com
Contact: 661-466-7727
Hannah Tyndall
- BA English + education minor (UC Davis)
- MA Education (UC Davis)
- NASM certified personal trainer
- CPR/AED Certified
I have always had a strong passion for fitness and health which i am excited to share with my clients at dsf! I have been weight training since 2014 and it quickly became such a crucial part of my life that i decided to earn my personal training certification in 2020. as your personal trainer, i hope top guide and motivate you toward reaching your own fitness goals.