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Owners  | Operators  |  Trainers Coaches  |  Fighters

GrindStone Athletics (GSA) will assist athletes in setting and achieving personal objectives through rigorous and goal-oriented training in a safe, respectful, and positive environment.  GSA will provide a place for all athletes to attain their highest level of personal growth and physical improvement regardless of athletic background.

Thomas E. Lenhart II

Tom is a native of Virginia Beach, Virginia where he had a successful football career and earned a spot on the All-Beach team as a Defensive Lineman.  He attended West Virginia University and completed a BS in Multi-Disciplinary Studies followed by a certification in personal training through World Instructor Training.  He spent the last seven years teaching English as a Second Language in Brazil, Thailand, Russia, Turkey, and South Korea and completed a second personal training certification through American Council on Exercise. Throughout his travels he has trained in several combat sports, particularly in Muay Thai. Tom spent a year in Thailand training and competing with true Muay Thai fighters. Later, he assumed the role as coach and trained Chase “The Weapon” Walden to a 3 fight win streak and a World Title. Tom has spent the greater half of his life committed to athletics of all types and continues to gather knowledge to be the best coach, athlete, trainer, and person he can be.

Chase Walden​

Chase "The Weapon" Walden is GrindStone's Muay Thai Head Coach as well as Grindstone's Owner/Operator and CEO/Founder of Virginia Thai Fighting Championships He is the founder of the Grindstone Muay Thai training system. His many titles and achievements in his 23-year martial arts career include 2013 World Kickboxing Association (WKA) 165lbs World Champion, 2009 WKA 165 lbs National Muay Thai  Champion, two-time Modern Gladiators Super Welter weight (160lbs) Muay Thai Champion, 165lbs King Of The Ring Muay Thai Champion, and WKA 2010 Team USA National team member. In 2010, Chase achieved WKA world ranking #3. He fought in Italy, Scotland and Thailand; he trained in Thailand four times in his career, two of which were televised through the Work Point Super Studios in Bangkok Thailand. Chase is a certified Instructor of Kru Muay Thai Under Muay Thai International and holds a Tae Kwon Do Black belt. He is also CPR/AED Certified.

Helena C. Wallis, NASM CPT

Helping others find inner joy and reach their goals through the gateway of fitness is my passion! I am a Certified Personal Trainer by the National Academy of Sports Medicine, Owner of LiFT by Helena - Personal Training & Fitness, Co-Owner of Kids & Teens Online Dance Academy, as well as, Bachata Vida Dance Company, and former basketball player.

I work with everyone from seniors to kids, specializing in moms, kids and teens, as well as dancers. Whether you are a beginner to fitness or an athlete, I will educate and assist you along your fitness journey. I use Functional Training, HIIT, Plyometrics, Metabolic Conditioning and other exercise methods to create challenging yet achievable, fun workouts to modern, upbeat music catered toward my clients needs and goals. Let’s work together and enjoy every step toward making your goals a reality!

Corey Hubbard

Corey Hubbard

Introducing Corey Hubbard, the newest addition to the dynamic team at Grindstone Athletics. With a passion for martial arts that spans over a decade, Corey Hubbard brings a wealth of experience and expertise to the role he fills at our gym. Specializing in Muay Thai and submission wrestling, Corey has been a dedicated practitioner since approximately 2008, boasting an expansive participation in numerous state and national tournaments.


Notably, Corey has not only competed in the NAIA wrestling program but also served as the starting 174-pound wrestler while in competition, showcasing both skill and dedication. Beyond our home mat, Corey has journeyed to Thailand to be immersed in the rich traditions of the country and train muay thai, wrestling, and Brazilian Jiu-Jitsu. Really a global explorer of martial arts disciplines, Corey has trained in various countries, embracing diverse styles to enrich his coaching repertoire.


Having been a part of the Grindstone community for several years as an athlete, Corey possesses a deep understanding of the Grindstone Athletics’ ethos, intensity, and the mindset instilled in its athletes. Outside the gym, Corey wears multiple hats as a local Realtor and a devoted father who shares the mat with their son, fostering a love for martial arts within the family. 


Excited about the prospect of sharing knowledge and partnering with fellow enthusiasts in class, Corey looks forward to welcoming you to the mat and fostering a vibrant, empowering training environment at Grindstone Athletics Martial Arts.

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