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Head Coach - Playa VistaPlaya Vista
Kenny Kallen
Head Coach - Playa VistaPlaya VistaKenny is a lifelong athlete and competitor with a strong passion for coaching. He graduated from Arizona State University with a degree in Kinesiology and has extensive experience working with professional, collegiate, and Olympic athletes, as well as fitness enthusiasts of all ages, from 4 to 80 years old. Kenny has coached Olympic lifting, powerlifting, and CrossFit, and spent nearly a decade at Velocity Sports Performance, including serving as the Fitness Coach for the Chinese National Ski Halfpipe team leading up to the 2022 Beijing Olympics. Driven to transform the fitness industry, Kenny guides his clients in unlocking their inherent greatness and potential, combining science, intuition, and joy to combat stress and enhance energy and efficiency.
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Head Coach - BrentwoodBrentwood
Tyler McCarthy
Head Coach - BrentwoodBrentwoodTyler is a lifelong athlete who graduated Cum Laude from Syracuse University with a degree in Health and Exercise Science. While at Syracuse, he gained valuable experience working with the sports performance team, assisting the men's varsity lacrosse team and other varsity sports. Back in his hometown near Boston, MA, Tyler coached a diverse range of athletes at a private strength and conditioning facility, from elementary school students to professionals. With a background in sports performance, personal training, CrossFit, and HIIT, he blends various training methods to create effective sessions. Tyler is dedicated to using a scientific and adaptable approach to help others achieve their movement-related goals, inspiring those around him to improve every day.
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Strength & Conditioning CoachBrentwood
Jonathan Carlin Gallegos
Strength & Conditioning CoachBrentwoodJonathan holds a degree in Kinesiology from CSULA and has spent most of his life playing soccer and competing in Latin ballroom dance for 10 years. He’s gained experience working in physical therapy clinics, gyms, coaching soccer, and teaching dance. Jonathan also interned with the UCLA Athletic Performance Team and at CSULA’s strength and conditioning program. His goal is to help people improve the longevity of their health and life through comprehensive training and care.
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Assistant Head Coach - Playa VistaPlaya Vista
Caitlin Herzig
Assistant Head Coach - Playa VistaPlaya VistaCaitlin is a certified Strength & Conditioning Specialist (CSCS) and USA Weightlifting (USAW) with a strong background in fitness. Born and raised in Los Angeles, she earned her Bachelor’s degree in Kinesiology from Arizona State University. Since then, Caitlin has trained a diverse range of clients, from general population to youth and professional athletes. Before joining Monarch, she focused on coaching youth and high school female volleyball players as well as male football players. Caitlin brings her knowledge, positive energy, and experience to the facility, helping others achieve their fitness goals.
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Strength & Conditioning CoachBrentwood
Joshua Michael Iannotti
Strength & Conditioning CoachBrentwoodJoshua Michael Iannotti is an NSCA Certified Strength and Conditioning Specialist with a Master’s in Sports Science and Performance. With over two years of research experience, he specializes in resistance training, strength and conditioning, and recovery strategies, applying this knowledge in both one-on-one and group settings.
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Strength & Conditioning CoachBrentwood
Andre La Brec
Strength & Conditioning CoachBrentwoodAndre is a former investment banker who decided to pursue his passion for strength and conditioning. His coaching journey began at Allegiate in Santa Monica, where he spent a year and a half that fundamentally changed his approach to coaching. Now at Monarch, Andre is thrilled to combine his love for training and coaching, teaching others the skills he’s so passionate about. After feeling unfulfilled in a career that didn’t resonate with him, he’s excited to have found his true calling in helping others achieve their health and fitness goals.
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Strength & Conditioning CoachBrentwood
Jeremy Rodriguez
Strength & Conditioning CoachBrentwoodJeremy is a dedicated coach who graduated from Sacramento State with a Bachelor’s in Exercise Science in 2020. After completing an internship at UC Berkeley, he moved to Southern California, where he has trained athletes of all ages, focusing primarily on soccer and basketball. Jeremy aims to create an environment where everyone can reach their potential through strength, endurance, and injury prevention training, helping them lead confident and healthy lives.
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Strength & Conditioning CoachBrentwood
Jacqueline Denise Tadych
Strength & Conditioning CoachBrentwoodJacquiline is originally from Clevland, Ohio, and brings over 20 years of experience as a Certified Strength and Conditioning Coach and Fitness Nutrition Specialist. She holds certifications including CSCS, ACE Certified Personal Trainer, CrossFit, and Precision Nutrition. Known for her keen attention to detail, Jacquiline has a talent for motivating clients to exceed their own expectations. Her enthusiasm for mobility, movement, and strength training translates into tangible improvements in her clients’ lives. Jacquiline is dedicated to leading by example, educating others on healthy living, and inspiring individuals to achieve their goals with a holistic approach to wellness.
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Strength & Conditioning CoachBrentwood
Zach Boss
Strength & Conditioning CoachBrentwoodZach graduated from Central Washington University in 2017 with a Bachelor’s degree in Clinical Physiology and a minor in Physical Therapy Rehabilitation. He holds the CSCS (Certified Strength and Conditioning Specialist) certification from the National Strength and Conditioning Association, as well as PES (Performance Enhancement Specialist) and CES (Corrective Exercise Specialist) certifications from the National Academy of Sports Medicine.
A multi-sport athlete in high school, Zach went on to play Division I rugby at Central Washington University, where he cultivated his passion for the training process. Since then, he has worked with clients of all ages and backgrounds, including athletes across all major sports leagues and several Olympic hopefuls. Driven by a deep commitment to helping others, Zach consistently dedicates himself to supporting his clients, regardless of their backgrounds or goals.
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Strength & Conditioning CoachBrentwood
Jose Alcantara Beas
Strength & Conditioning CoachBrentwoodJose is a Certified Strength and Conditioning Specialist, a Registered Strength and Conditioning Coach, and a Precision Nutrition Level 1 Coach. He graduated from California State University, Los Angeles, with a Bachelor’s degree in Kinesiology and has extensive experience working with professional, Olympic, and collegiate athletes. Jose has spent over a decade developing and empowering excellence as a physical performance coach with the Seattle Mariners Professional Baseball Club, UCLA Football, EXOS, and California State University, Los Angeles. He is committed to creating a positive impact and providing enjoyable experiences for everyone through fitness, nutrition, and recovery.
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Strength & Conditioning CoachPlaya Vista
John Franklin
Strength & Conditioning CoachPlaya VistaJohn has been a full-time fitness professional for three years, driven by a passion for helping individuals achieve what they once thought impossible.
Beyond the gym, he stays active through surfing, hiking, camping, and skateboarding.
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Strength & Conditioning CoachBrentwood
Florian De Breyne
Strength & Conditioning CoachBrentwoodFlorian has been a Strength and Conditioning Coach for over 6 years. He graduated with his Master's Degree in Exercise Science and started his career as a Personal Trainer in France, where he's originally from.
In France, he trained in Sports Nutrition and Sports Psychology. He has experience working with athletes, including MMA fighters, American football players, and Olympic weightlifters. Since moving to Los Angeles in 2023, he has interned with UCLA Football as a S&C Coach and became a Certified Strength and Conditioning Specialist with the National Strength and Conditioning Association. Florian is detail-oriented and helps others with his science-based coaching approach.
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Strength & Conditioning CoachBrentwood
Brandon Trajano
Strength & Conditioning CoachBrentwoodBrandon Trajano comes from a basketball and athletic performance background, giving him a deep understanding of what it takes to build strength, power, and resilience. After competing alongside elite athletes, he shifted his focus to strength and conditioning, helping others maximize their potential.
As a Certified Strength and Conditioning Specialist (CSCS), Brandon takes a science-based, practical approach to training. At Monarch, Brandon is committed to helping clients move better, feel stronger, and perform at their best. -
Strength & Conditioning CoachPlaya Vista
Kekoa Mathews
Strength & Conditioning CoachPlaya VistaKekoa is a Certified Strength and Conditioning Specialist with a decade of experience in personal training and collegiate athletic performance. He holds a bachelor's degree in Kinesiology from California State University, San Bernardino.
Kekoa has worked with collegiate athletes across a range of sports, most recently serving as an Athletic Performance Coach for the UCLA Men's Basketball Team and previously supporting multiple teams at Loyola Marymount University emphasizing athletic development and injury prevention. He has extensive experience training clients through 1-on-1 personal training and group fitness instruction. With a strong foundation in kinesiology and a passion for helping people achieve their fitness goals, he brings an adaptive, data-driven approach to help clients of all levels build lasting strength and resilience. -
Strength & Conditioning CoachBrentwood
Garrett Gaston
Strength & Conditioning CoachBrentwoodGarrett has been a personal trainer since 2012, with an emphasis on strength and conditioning for sports training. He has a brown belt in Brazilian Jiujitsu, which he which he currently competes in and actively coaches.
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Strength & Conditioning CoachPlaya Vista
Seth Kapsinow
Strength & Conditioning CoachPlaya VistaSeth interned with the Cal State LA Strength and Conditioning staff while obtaining his Bachelor's Degree in kinesiology. Following graduation, he coached basketball players as well as his own clientele at a prep school. While coaching at Allegiate Gym, he obtained his CSCS along with an Applied Performance Coach Certification and Precision Nutrition L1 Certification. He strives to help his clients feel comfortable moving through different positions and confident pushing past their limits in a weight room, while keeping them engaged for their session.
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Strength & Conditioning CoachBrentwood
Jesse Olmos
Strength & Conditioning CoachBrentwoodJesse is a Certified fitness instructor and strength coach with over 10 years of experience- ranging from thoughtful group classes to hypertrophy training and also rehabilitation via strength training.
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Strength & Conditioning CoachBrentwood
Jack Van Dusen
Strength & Conditioning CoachBrentwoodJack Van Dusen is a Strength and Conditioning Coach at Monarch Athletic Club with over four years of experience guiding clients through the transformative process of becoming stronger, more capable humans. Certified in nutrition, biomechanics, and personal training, he has worked with a broad spectrum of individuals ranging from Division I athletes chasing marginal gains to older adults committed to maintaining independence and vitality. His specialties include shoulder rehabilitation, return-to-performance strategy, calisthenics mastery, and leading group training sessions that appear to flirt with chaos but are, in fact, precisely engineered.
Jack is known for his empathetic approach, animated coaching style, and a calibrated appetite for risk that remains safely on the productive side of reckless. He views the human body as both a high-performance system and an unfolding narrative, treating each client’s development as a collaboration between science, discipline, and controlled audacity. He believes growth happens just beyond comfort, though he is careful to define “just beyond” in ways that preserve long-term joint health and personal dignity.Outside of Monarch, Jack operates as a motorcycle philosopher, A-minus storyteller, respectable yet decisively mid-tier boxer, and occasional video game practitioner conducting highly unofficial reaction-time experiments. He approaches life the same way he approaches training: intentionally, intensely, and with a quiet suspicion that comfort rarely builds anything worth having.
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Strength & Conditioning CoachBrentwood
Jesse Sampson
Strength & Conditioning CoachBrentwood -
Strength & Conditioning CoachBrentwood
Zac Harrison Jones
Strength & Conditioning CoachBrentwoodZac is an athlete with a Bachelor’s degree in Sport and Exercise Sciences and a Postgraduate Diploma in Applied Science, both completed at Otago University in New Zealand. As a professional rugby player, Zac brings elite-level performance insight to his role as a Strength and Conditioning Coach.
Zac has extensive experience working with professional athletes and within academy systems, including the Tasman Mako, where he supported both the women’s and men’s academy’s as well as the professional men’s team. In addition to his rugby performance work, he has spent more than three years as a personal trainer, helping athletes and clients of all levels build confidence, reach their goals, and enhance their overall health and well-being.
He prides himself on being evidence-based but adaptable, applying scientific principles while tailoring his approach to each individual’s needs and training background. Zac is committed to creating an environment that fosters both performance and long-term development. -
Strength & Conditioning CoachPlaya Vista
Nico Melendez
Strength & Conditioning CoachPlaya VistaNico Melendez is a Strength and Conditioning Coach specializing in sports performance–based training. A former Division I soccer player at California State University, Bakersfield, and later a semi-professional athlete, Nico built his coaching philosophy on discipline, resilience, and competitive excellence.
After college, he served as a wildland firefighter, gaining firsthand experience in tactical fitness and the physical demands placed on those working in extreme environments. Nico is also an active Olympic weightlifter, applying the same performance principles he teaches to his own training.With over five years of coaching experience, he blends his athletic background, tactical performance insight, and strength training expertise into a focused, athlete-centered approach. Nico specializes in long-term athletic development, return-to-sport programming, and performance optimization—helping athletes move better, get stronger, and perform at their highest level.He prides himself on “walking the walk,” continually refining his own training and coaching to deliver the most effective, evidence-based methods. -
Strength & Conditioning CoachBrentwood
Elizabeth Hunt
Strength & Conditioning CoachBrentwoodElizabeth is a Certified Strength and Conditioning Coach who grew up in Boulder, Colorado, where an active, outdoor lifestyle shaped her passion for movement and performance. She earned both her Bachelor’s and Master’s degrees in Kinesiology from Texas Christian University, specializing in sport psychology.
A lifelong athlete, Elizabeth enjoys skiing each winter, hiking in the mountains, and has completed a triathlon. She is also a certified nutrition coach and a pre- and postnatal fitness specialist, allowing her to support clients across a wide range of goals and life stages. Her comprehensive background in human performance and psychology informs a client-centered approach shaped by her own athletic experiences. With over six years of experience working with clients ranging from young children to professional athletes, she emphasizes sustainable training that integrates strength, education, and mindset.
Elizabeth’s philosophy centers on helping individuals become lifelong movers—guiding clients toward greater resilience, confidence, and long-term performance both inside and outside the gym. -
Strength & Conditioning CoachBrentwood
Maria Ramirez
Strength & Conditioning CoachBrentwoodMaria is a dedicated Strength and Conditioning Coach committed to helping individuals transform their lives through purposeful training. She brings energy and intentionality to empower clients and athletes to unlock their full potential both physically and mentally.
As a former athlete, Maria turned her passion for sport into a professional pursuit, earning her Bachelor’s degree in Kinesiology and becoming a Certified Strength and Conditioning Specialist (CSCS).
Outside of coaching, Maria enjoys hiking, exploring the outdoors, and discovering great food—always embracing balance as part of a strong and sustainable lifestyle. -
Strength & Conditioning CoachBrentwood
Jasmine Owens
Strength & Conditioning CoachBrentwoodJasmine Owens is a personal trainer with over 6 years of experience in strength, conditioning, and performance training. She has held leadership roles within the fitness industry, guiding both clients and fellow coaches in high-level training environments. With a background in kinesiology, a foundation as a trained dancer, and ongoing studies in biology, Jasmine brings a well-rounded understanding of human movement to her coaching. Mentorship from physical and manual therapists has shaped her strong interest in body mechanics, injury prevention, and sustainable training. Jasmine blends performance-based strength training with a long-term wellness approach, helping clients move better, build strength, and build habits that support lifelong health.
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Strength & Conditioning CoachBrentwood
Mari Gugol
Strength & Conditioning CoachBrentwoodMari is a heart-led strength and conditioning coach and yoga teacher on a mission to challenge every person’s mind, body, and spirit on their beliefs of who they are and what they are capable of. She discovered all things fitness through her own recovery from PTSD over 10 years ago. Through movement and training, she learned people not only see who they are in the face of adversity, but that they are also given the choice to change. Using movement as a metaphor for living, nothing brings her more joy than helping others discover joy, freedom, and strength through their bodies to become the fullest, most authentic expression of themselves.
Mari is a certified NASM personal trainer, has completed over 200 hours in yoga training certified through Yoga Alliance, and is a competitive Olympic weightlifter. When she is not in the gym, Mari can be found drawing and painting, baking, and playing with her cat Rory who she loves dearly. -
Strength & Conditioning CoachBrentwood
Cameron Randall
Strength & Conditioning CoachBrentwoodCameron is a Certified Strength and Conditioning Specialist from Upland, California, who has been serving his communities through health and fitness for the last 9 years. His passion for training and serving those in need has led him through a career with experience in training not just the general population but a wide variety of people, including those who are seeking a better quality of life, managing disabilities, to professional athletes and beyond. Outside of the walls of the gym, Cameron is most likely found exploring LA's best coffee shops with his German Shepherd, Wyatt.
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Strength & Conditioning CoachBrentwood
Sean O'Donovan
Strength & Conditioning CoachBrentwoodSean O’Donovan is a Strength Coach and Certified Personal Trainer with an athletic background in football (soccer) and endurance running, including marathon and ultra-marathon events. Originally from England, Sean’s professional journey was shaped by overcoming injuries and illness, leading to his belief that movement is medicine and that training should improve how you move, feel, and perform, not just how you look.
He built his foundation learning under sports rehab practitioners, S&C coaches, and successful gym owners, giving him a well-rounded approach to training, injury prevention, and recovery.
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Strength & Conditioning CoachBrentwood
Kris Guevara
Strength & Conditioning CoachBrentwoodAs both a powerlifter and speed-focused athlete, he brings firsthand experience in performance training, blending strength development with athletic movement to produce well-rounded results.
He has worked with a wide range of clients, utilizing performance testing methods such as agility tests, speed test, and foundational strength benchmarks like the squat, bench press, and deadlift. These tools allow him to track measurable improvements in strength, power, and conditioning while adapting programs to each individual needs.
Driven by a passion for education and performance, Kris is actively pursuing higher education to deepen his expertise in health and human performance. His mission is to build stronger, more resilient athletes while promoting sustainable health practices that extend beyond the gym. -
Strength & Conditioning CoachMiami Beach
Armando Santos
Strength & Conditioning CoachMiami BeachArmando is a strength and conditioning coach, certified personal trainer with 10 years of experience. His coaching philosophy centers on building strength, movement improvement, and developing sustainable lifestyle habits that empower individuals to discover their potential, and build confidence. Armando works with individuals of all ages and fitness levels, from those looking to improve their overall health and longevity to athletes preparing for competition.
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Strength & Conditioning CoachMiami Beach
Eric Zimmerman
Strength & Conditioning CoachMiami BeachEric is a Certified Strength and Conditioning Specialist (CSCS), USA Weightlifting Coach (USAW), and Functional Range Conditioning Mobility Specialist (FRCms) who holds a Master of Science in Applied Physiology and Kinesiology with a concentration in Human Performance from the University of Florida.
His coaching career has taken him through some of the most demanding environments in collegiate athletics, serving on the strength and conditioning staffs at the University of Georgia during their historic 15-0 National Championship season, the University of Arizona during a 10-win Alamo Bowl campaign ranked #11 nationally, and the University of Miami during their 2025-26 College Football Playoff run to the National Championship Game. Eric's approach is rooted in the science of human performance, applying evidence-based programming and individualized assessment to help each client move better, build strength, and reach their full potential.
He brings championship-level standards and a genuine investment in every person he works with, whether they are an elite athlete or someone working toward the best version of themselves.
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Strength & Conditioning CoachMiami Beach
Michael Allende
Strength & Conditioning CoachMiami BeachMichael Allende is a Certified Strength and Conditioning Specialist (CSCS) whose experience spans NCAA Divisions I–III and private performance. A Miami native and lifelong multi-sport athlete, Michael earned his bachelor’s degree in Kinesiology from the University of Central Florida, where he also competed in collegiate club volleyball.
His professional foundation was established at the University of Central Florida and further shaped through experiences at the University of South Carolina and the University of Georgia. Michael later served as Director of Strength and Conditioning at Allen University, overseeing the physical preparation and performance needs of all 12 NCAA Division II athletic programs. His collegiate development continued at Springfield College and the University of Massachusetts Amherst.
While football performance has been a prominent thread throughout his career, Michael’s experience encompasses athletes/individuals across a diverse range of sports, competitive levels, and performance needs. Michael’s coaching philosophy centers on holistic development, with physical performance serving as only one dimension of growth. He believes that physical preparation offers a unique opportunity to cultivate qualities that transcend performance, shaping how individuals carry themselves, engage with others, and contribute to the lives and communities around them.
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Strength & Conditioning CoachMiami Beach
Shereen Taljebini
Strength & Conditioning CoachMiami BeachShereen is originally from Miami, Florida, and brings a strong academic and athletic background as a Certified Strength and Conditioning Coach. She holds a Master's degree in Applied Physiology (Strength & Conditioning) from the University of Miami and a Bachelor's degree in Physical Education from Florida International University, along with certifications as a CrossFit Level 2 Trainer and USA Weightlifting (USAW) Level 1 Coach. A former competitive tennis athlete, Shereen has coached strength and conditioning athletes across sports including tennis, volleyball, football, baseball, and running, and has helped clients recover from injury, become pain-free, and return to training with confidence. Known for bringing the same energy to the training floor that she brings to the competition floor, Shereen is a competitive hybrid athlete herself, training and competing in CrossFit and functional fitness events. She is dedicated to a science-grounded, hands-on approach to coaching, helping clients build strength, resilience, and lasting confidence in their bodies.
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Strength & Conditioning CoachMiami Beach
Tamia Moya-Mantilla
Strength & Conditioning CoachMiami BeachTamia Moya-Mantilla is a certified personal trainer and health performance coach with a background in health optimization, longevity, and strength and conditioning. She earned her Bachelor of Arts in Communication from George Mason University and holds certifications as an NCSF Certified Personal Trainer, CrossFit Level 2 Coach, Pain-Free Performance Specialist, Pre/Postpartum Corrective Exercise Specialist, and Fascial Stretch Specialist. She is also CPR/AED certified.
Throughout her career, Tamia has worked with a diverse range of clients to develop personalized fitness and wellness strategies based on their goals, movement patterns, lifestyle, and overall health. Her experience includes functional strength and conditioning, diagnostic testing, mobility, corrective exercise, weight management, and performance coaching. She takes a thoughtful, individualized approach to coaching and believes meaningful results come from sustainable lifestyle habits that help clients build strength, move confidently, and support their long-term health and quality of life.
Outside of work, Tamia enjoys Olympic weightlifting, discovering delicious new restaurants, dancing, spending time with friends and family, and finding the best strong coffee. She is a big animal lover and loves recharging on the weekends by the pool or at the beach. -
Strength & Conditioning CoachMiami Beach
Wilson Cal
Strength & Conditioning CoachMiami BeachWilson Cal, M.Ed, CSCS, PN1, is a Miami-based performance coach with a background in Division I football and collegiate strength and conditioning. He holds a master’s degree from Northwestern Oklahoma State University, where he was a team captain and All-Conference selection, and has coached at UCLA and D1 Training across sports ranging from football to rowing. Certified through the NSCA and Precision Nutrition, he now helps athletes and everyday clients build strength and performance through his coaching.