Our coaches will help you FEEL Amazing

Meet the team that’s dedicated to making your goals a reality.

our story

CrossFit PTBO was born July 2015 – our doors officially opened end of August 2015. They had a vision of what they wanted in a CrossFit gym and there was nothing like it in town. They took the leap and decided to open up CrossFit PTBO.

Their first location was 638 The Kingsway and it was just over 4000 sqft of space. They made it their own space but they always knew this wasn’t going to be their home. Dave began working full-time at the gym as of January 2016 and by a stroke of luck, around May 2016, they found their second location, 680 The Queensway (over 6000 sqft). All the stars lined up and they moved into their new location July 2016. Fast forward to May 2020, CrossFit PTBO moved to 701 The Queensway and it has instantly become our home.

They have been evolving since then by building up their personal training portfolio, growing the Weightlifting Club, expanding in group CrossFit classes, and specialty programs. They are constantly trying to reinvest into the business.

Ruth and Dave are committed to their staff and members, and are driven to providing the best services to help people achieve their health and fitness goals.

Founders of Crossfit PTBO

Dave Stewart and Ruth Cheng

meet your support team

Crossfit PTBO Coach

Codi Armstrong

Head Weightlifting Coach

CrossFit Level 1 Trainer

Emergency First Aid CPR C
NCCP Competition Introduction
Bachelor of Sports Management - Brock University, 2014

Codi, a Peterborough native, has been coaching and competing in weightlifting since 2011. After graduating high school, he moved to St. Catharines to pursue a degree in Sport Management from Brock University. Although the sport of Olympic weightlifting is his true passion, he has also coached multiple powerlifters to great achievements in their sport, including national champions, world championship medalists, and multiple world records. He enjoys sharing his knowledge and experience with athletes of all levels – in CrossFit and weightlifting. Codi continues to compete in Olympic weightlifting at a provincial and national level.

He has an extensive portfolio in personal training at CrossFit PTBO and is also the Head Weightlifting coach.

Crossfit PTBO Coach

Jess Verwey


CrossFit Level 1 Trainer
Fitness and Health Promotion Diploma

Jess started CrossFit in 2014 and has been coaching since 2017. She has always been very active – she rode horses for many years, played rugby in high school, boxed at a local club and was a long distance runner for 2 years. She joined CrossFit after running her first marathon and has never looked back. For her, it’s been refreshing to share space with such a diverse group of people; she enjoys sweating and putting in hard work. She loves that it’s constantly changing and enjoy being part of the community. As a coach, she loves to help people improve and learn new skills. She initially joined PTBO to be part of the Weightlifting team, so it’s not surprising that she likes heavy barbells, but somehow enjoys doing burpees too!
Crossfit PTBO Coach

Emma Crozier


Emma grew up participating in competitive dance and gymnastics. Her fascination with the human body and its capabilities naturally led her to attain a Bachelors degree in Kinesiology and a Masters in Physical Therapy. She now works as a Registered Physiotherapist in Peterborough and enjoys helping individuals of all ages get back to the sports and activities they love. Her personal journey with CrossFit began in 2017 at a time in her life when she was transitioning away from group sport and competition. She quickly fell in love with the unique challenge of the sport as well as being a part of the amazing community. As a coach, Emma strives to help every athlete develop a positive mindset around fitness and health so they can excel in life and performance!
Crossfit PTBO Coach

Riley Carter

Client Success Manager
Nutrition Coach
Two Brain Coaching: Nutrition

BSc. in Education - Physical Education, Health and Human Movement

As a former Division 1 athlete and Team Canada Softball member, Riley has been involved in sports her entire life. She has been involved in softball as a player as well as a coach. With a teaching degree in Physical Education, Riley has always had a passion to help others succeed. As a new member to the CrossFit PTBO community, she is looking forward to new and challenging workouts and helping clients reach their goals. When Riley is not at the gym, you can find her on the skill hill at Brimacombe as a ski instructor!