Meet the Squad
Jaws Nelson
CPT, CFSC, FRC, Mad Dogg, USA Boxing
From hitting up a boxing gym in between Broadway shows to becoming one of Wilhelmina’s original fitness models, Julie “Jaws” Nelson has always been at the forefront of fitness trends. Jaws’ fitness philosophy has always been to mix hard work with fun
Nick Herodotou
Body Composition & Strength
Hailing from Melbourne, Australia, Nick comes with over 10 years experience in the fitness industry. He has worked with national champion snowboarders, kayakers for the 2016 Rio Olympics, models, office workers, stay at home moms, and rehab clients. He holds a bachelor's degree in Psychology and Psychophysiology, accreditations in PICP Strength and Conditioning (Level 3), Athletes Performance, PIMST, Olympic lifting, Biosignature Modulation and has a Diploma of Advanced Nutritional Medicine. Nick specializes in body composition transformation for those wanting to change their body shape, strength, and conditioning for athletes.
Carolina Araújo
Strength, Conditioning and Pilates
Originally from Brazil, Carolina has been living in New York for 18 years. She is a certified Pilates instructor, personal trainer, and prenatal/postnatal specialist. Carolina is dedicated to empowering her clients to feel strong, capable, and confident in their bodies. Her approach focuses on the importance of alignment, posture, and integrating breath with movement, helping you move better and feel better from the inside out. As a mother of two, she understands the unique challenges of balancing fitness with everyday life and is here to support you on your journey to a healthier, more empowered self
Beau Whitman
Strength, Body Composition & Performance
Beau is a passionate athlete, cancer recovery coach, and motivational speaker who is dedicated to helping cancer survivors and injured athletes make full recoveries. In addition to developing personalized fitness training programs, Beau motivates individuals to be vulnerable and share their stories in order to help them come back stronger both physically and mentally.
Arhelis Mercedes
NASM/NASM Sport enhancement/FMS certified
Arhelis Mercedes is a fitness coach, personal trainer, and health lifestyle enthusiast. What drew him to the fitness industry was his own post-surgery rehabilitation, which he now specializes in helping his clients with. Arhelis thinks it is so rewarding to watch his clients start to move better, feel younger, and eventually live pain free. He is super passionate about all sports, but especially basketball! He is a dedicated NY Giants and Knicks fan (even through the hard times).
David Nso
Strength and Conditioning
David has been a personal trainer for over 10 years in New York City. Originally from Cameroon, Central Africa. David studied at UMBC in Maryland earning his Bachelor’s degree in Biology, National Academy of Sports Medicine (NASM CPT, CES, PES specialist). David is known for working together with his clients to bring of the best version of themselves through his tailored programs. David is also an ex-professional soccer player.
Briana Williams
CPT, USATF, Kettlebell Concepts
Raised in New York City, Briana Williams is a trainer, run coach, and wellness consultant. In designing high-quality services and fitness programming, Briana uses the most effective training methods to improve clients’ performance and health, allowing them to surpass their goals. Her challenging training approach is well-informed by exercise science and experience, not influenced by the latest trends. Briana provides a technical and holistic training experience that optimizes relevant performance metrics, such as speed, strength, power, and body composition.
Sandra Sanchez
Movement Enhancement, Graston, Cupping, FRC (See Recovery Page)
Sandra Sanchez has been working professionally within the health/fitness industry for the past 25 years as a personal trainer, movement specialist, and soft tissue therapist. She has learned directly from Los Angeles Clipper Soft Tissue Therapist and world-renowned manual movement expert Lenny Parracino. She continued her journey and studied under world-renowned Physical Therapist Gary Gray and Dr. Dave Tiberio, PHD and became a Gray Institute Fellow of Applied Functional Science.
Christian Rodriguez
Strength, Conditioning
Christian is NYC native, and grew up with a passion for sport, fitness and health. With a bachelor’s in Health Sciences, he approaches training with positivity, working to strengthen his clients both physically and mentally.
Theodora Fouseki
Strength and Conditioning
Born in Nafpaktos, Greece. Studied at National and Kapodistrian University of Athens, Physical Education and Sports Science (BSc), focusing on the physiological responses during High Intensity Interval Training (HIIT). Publishing her first paper as a co-writer in 2021 at the Journal of Strength and Conditioning Research. Volunteer swimming coach at Special Olympics Hellas and taking part of events by the same organization for more than 2 years. Moved in New York City in 2020 and completed a master’s degree at Exercise Sciences (MSc) at Queens College. Worked as an intern at Iona College, part of the Strength and Conditioning team. Highly motivated in sports, member of a basketball team since for more than 11 years.
JACK SCHRAM
Strength and Conditioning
Jack specializes in elite sports performance, burn fat/gain muscle, and glute development programs. As a former college hockey player and current Ice Cross Downhill Team USA athlete, he has trained under some of the best trainers and coaches in the world, alongside professional athletes, and at Olympic training centers. Jack’s unique skills and experience can help any age or gender achieve their fitness goals. Certifications include CPPS, FRCms, FRA.
BRITTNI TUCKER
Pilates & Mobility
A certified Pilates instructor, Brittni has has taught in studios of all types, including classical, contemporary and large group class formats. Brittni found her passion for Pilates during her early modeling days. Her goal is for her clients to love the way they feel after each session—toned in all the right areas, finding new ranges of mobility, achieving a deep core connection—feeling their best and strongest selves.
nick volos
Strength & Conditioning
Nicholas Volos has an extensive background in the field of health, fitness and athletic performance. He earned his masters degree in Applied Physiology & Kinesiology and his bachelors in Nutrition & Exercise Science. He is a certified Strength & Conditioning Specialist while also holding various certifications by StrongFirst such as the Kettle Bell Levels 1 and 2, as well as their Body Weight certification.
sebastian ramirez
Mobility & Conditioning
Born in Colombia and raised in NYC, Sebastian is a NASM Certified Personal Trainer, Sports Conditioning Coach, and Nutrition Coach. He is a former collegiate swimmer and currently an experienced runner and marathoner. He has devoted his life to holistic wellness and to guiding individuals through challenging training regimens. With a passion for fitness and a heart for helping others, Sebastian empowers clients to reach their peak potential.
Carlos Velasquez
Strength & Performance
With over 20 years in the fitness industry, I specialize in evidence-based training designed to optimize body recomposition, build strength, and promote longevity. At S10 Training, I create personalized programs tailored to each client’s goals, utilizing fitness assessments, metabolic testing, and injury prevention strategies to ensure long-term health and peak performance.
Train With Us
Group Classes
Our signature group classes are fast-paced full-body workouts that will push you just out of comfort zone. Designed for strength and conditioning, this circuit will have you feeling the energy of group training, and is a great introduction to our methods and equipment.
See SchedulePrivate
Achieve your goals. Train 1-on-1 with our coaches and receive personalized, results-direct training. We’ll assess you regularly for strength, body-composition, lifestyle and diet to properly track your acheivements. We’ll push you through programs that will get you where you want to be. You’ll learn correct form, nutrition protocols and training programs that will give you the confidence to train by yourself too.
Contact UsMemberships
Memberships to S10 are vetted and limited to 100 only. Members are generally clients and have a knowledge of S10 form and etiquette. We cap our membership numbers to a ensure the gym is never too busy.
Contact UsResults
We test and measure your progress regularly.
That's how we know you are getting the results you want.