John Weeks: Head Coach
Don Berthiaume: CrossFit
Jillian Humphreys: HITT60
Matt Mielke: CrossFit
Courtney Berger: CrossFit
Andrea Chisolm: CrossFit
Victoria Karolenko: CrossFit, HITT60
Nate Gordon: CrossFit, CrossFit Kids
Ryan Mahoney: CrossFit
Curtis Alderman: CrossFit
Sara Gras: HITT60, CrossFit Kids
Chris Shirley: CrossFit

John Weeks: Head Coach/Owner

Beginning with martial arts at the age of 6, John has continuously practiced and studied various fitness modalities. Realizing the potential benefits of strength and conditioning programming to his own martial arts practice, he began formal study of various methodologies through the National Academy of Sports Medicine. He went on to hold various management and training positions in the DC Metro area, before founding Tough Temple.

He believes in constant self-improvement, and to that end continues to study and learn in various fitness modalities to better help his members’ growth. His own experience with the effectiveness of functional fitness has led him to use it as his primary method of training, while scaling it to appropriate intensities for anyone and everyone. He balances this high intensity approach with a solid foundation in Corrective Exercise and rehab modalities. This holistic approach allows him to work with injured athletes, deconditioned populations, and children; systematically building them up to allow for higher work capacity over time.

  • National Academy of Sports Medicine
  • CPT – Certified Personal Trainer
  • CES – Corrective Exercise Specialist
  • PES – Performance Enhancement Specialist
  • CrossFit – Level 1 Trainer
  • USAW – Advanced Sports Performance Coach

Sara Gras

A lifelong fan of all forms of fitness, Sara has been teaching yoga and other group exercise formats for over ten years. As a mom of two, she believes kids of every age and ability should have the opportunity to experience physical activity in a fun, challenging, and positive environment. She approaches kids’ classes in the fitness environment with creativity and an emphasis on good sportsmanship. Her primary goal as a kids’ coach is to help each athlete discover how much he/she are capable of achieving.

  • CrossFit – Level 1 Trainer
  • CrossFit Kids Trainer
  • CrossFit Gymnastics
  • 500-hour Yoga Teacher Training Graduate – Yogaworks NY
  • 200-hour Registered Yoga Teacher – Yoga Alliance

Don Berthiaume

Don’s passion for CrossFit and fitness began several years ago when he was looking for a way to push himself harder in the gym. As a CrossFit L-2 Trainer Don brings energy, excitement, and enthusiasm to Tough Temple each and every workout.

  • CrossFit – Level 2 Trainer

Andrea Chisolm

Andrea grew up in North Carolina in a family that valued health and nutrition; however, she did not participate in sports or consider herself an athlete until her adult years. Andrea began CrossFit in 2016 after moving to the DMV area. Prior to CrossFit she participated in boot camp and personal training. She soon found herself “eyeing” CrossFit athletes in awe of their strength and stamina and was looking for an additional challenge. With functional fitness not only does she enjoy setting and achieving new goals for what she can push her body to, but she loves the community and looks forward to each and every time she can step foot in the gym. As a coach she strives to share this passion for fitness and community.

  • CrossFit – Level 1 Trainer

Matthew Mielke

Matt started high intensity CrossFit style training in 2012. Bored by the monotony of the typical gym, Matt sought out more exciting opportunities to compete athletically. When he found CrossFit, he fell in love with the constantly varied aspect of the sport. Growing up, Matt was a multi-sport athlete playing soccer, baseball, lacrosse, and track. Matt also enjoys distance running and has completed multiple marathons, and other distance running events. After moving around the DMV, Matt found his home at Tough Temple and enjoys coaching individuals to meet their personal fitness goals.

  • CrossFit – Level 1 Trainer

Nate Gordon

A former swim coach and spin instructor, Nate was looking for something to shake up his fitness routine when a friend recommended, he join her at CrossFit in the spring of 2011. The friend didn’t stay with it, but Nate was hooked. He enjoys the variety of functional fitness as well as the camaraderie of the community. Nate enjoys competing in local fitness and USA Weightlifting events and was proud to defend his title as the fittest “45-49 Male School Teacher in Maryland” during the most recent CrossFit Open. He has worked as an elementary school teacher for over 25 years – currently at the Bullis School – and enjoys teaching our youngest members.

  • CrossFit – Level 1 Trainer
  • CrossFit Kids Trainer

Christopher Shirley

Chris stumbled upon CrossFit in the fall of 2011 while looking for training alternatives to prepare for a Tough Mudder. He also played collegiate lacrosse at York College of Pa. and was a year-round athlete in a local high school participating in football, basketball and lacrosse. Chris quickly became hooked on CrossFit due to its competitive nature and overall variety in encompassing all levels of fitness. Chris received his CrossFit Level 1 certification in Spring 2014. Currently, Chris’s main focus is in participating in local fitness competitions in team & individual settings.

  • CrossFit – Level 1 Trainer

Victoria Karolenko: Media Director

Victoria is a former Team USA, nationally ranked figure skater and D1 collegiate athlete who continues to coach rising hockey and figure skaters. After retiring from competitive skating, Victoria searched for something to help match the intensity and level of her passed athletic achievements. It was in December of 2014 that Victoria found Tough Temple; where being an active member in the community has helped fulfill the void competitive figure skating left.

Victoria seeks to encourage an energetic, friendly, and supportive community at Tough Temple through an engaging coaching style and maintaining Tough Temple’s robust social media accounts. Victoria brings a perspective gained as a former international athlete which she uses to inspire members to reach their highest potential.

  • CrossFit – Level 1 Trainer

Ryan Mahoney

Coach Ryan found his love for CrossFit after playing college football. CrossFit gave him the community atmosphere and the competition that he was looking for.  As a full time Special Education teacher, Coach Ryan has a passion for teaching and helping athletes reach their goals and maximum potential. Ryan is our resident hype man and DJ who motivates his class with great energy and a positive attitude. Ryan has graduated with his Masters and Bachelors degree from McDaniel College in 2017 and has called MoCo and Tough Temple his home since. 

  • CrossFit – Level 1 Trainer
  • CrossFit Scaling
  • Football at McDaniel College 
  • Background in Lacrosse, Hockey, and Football 
  • Volunteer Coach for Special Olympics 
  • Down 80lbs since starting CrossFit in 2017

Courtney Berger

Courtney is from Lehighton, PA and grew up playing soccer, field hockey, and riding horses. While in college, Courtney played field hockey at Bloomsburg University, PA. During college, Courtney stumbled upon CrossFit where she instantly fell in love with the community, intensity, and competition. When not in the gym, Courtney enjoys hiking, rock climbing, and mountain biking. For Courtney coaching occurs not only at Tough Temple but also on the soccer field and in the classroom, as she is a Teacher of the Deaf and Hard of Hearing and Middle School Soccer Coach.

  • CrossFit – Level 1 Trainer

Curtis Alderman

Curtis is a U.S. Air Force Veteran who proudly served this nation in Operations Enduring and Iraqi Freedom. He started CrossFit back in 2013 and immediately fell in love with the physical and mental aspects that reminded him of his military training. Curtis has a deep passion for training and coaching. Helping others reach their fitness goals is a top priority for him and is always willing to help.

  • Certified CrossFit Level Trainer (CF-L3)
  • USAPL (L-1)
  • USAW (L-1)
  • Westside Barbell Personal Trainer

Jillian Humphreys

Jillian is from Santa Clara, CA and grew up in the Baltimore area. As a kid, she was involved in multiple sports including gymnastics, swimming, tennis and track and field. In college, Jillian played club sports and was involves in Masters’ swim team, in addition to serving as a lifeguard. Jillian found CrossFit while looking for a supplement to her triathlon training. She immediately fell in love with the combination of lifting, high intensity cardio, and gymnastics. When not at the gym, she can be found enjoying yoga, whipping up a gourmet gluten free goodie, and teaching kids how to swim.

  • 230 Hour Yoga Teacher Training Graduate