Introducing the Xtra Mile Fitness team

Meet the fitness experts that are here to help you achieve your goals

Corey Lewis owner of Xtra Mile Fitness
Our founder

Corey Lewis

Corey began training athletes in 2007 and in the summer of 2011, he began exploring the idea of opening his own facility in order to provide the best training facility for all of his athletes. After many months of hard work, CrossFit Xtra Mile opened on January, 9 2012. Since that day, Corey has stayed focused and never lost the desire to help people reach their goals. Corey gets enjoyment out of pushing people to be the best they can be and watching those people do things they never thought possible. Corey strongly believes that through Coaching and the amazing community at Xtra Mile Fitness that anything is possible. The human body can do amazing things if given the tools to do so and Corey looks forward to helping many more people over the years utilize those tools to reach their goals. One of Corey’s favorite quotes is, “A hard worker will eventually succeed,” and Corey strongly believes that!

Our coaches

Christa Sawyer coach at Xtra Mile Fitness

Christa Sawyer

Coach and Chief Experience Officer

Before finding CrossFit, Christa coached gymnastics for 7 years. In 2015, Christa started CrossFit and immediately fell in love. The gymnastics components in CrossFit are some of her favorites, and she was thrilled to get the opportunity to continue coaching. In 2018, she graduated from Iowa State University with a degree in Exercise Science and the determination to find her dream job at a CrossFit gym. When she moved to St. Louis, Xtra Mile was the first gym she stepped foot in. She fell in love with the community and knew right away she had found her gym home. Christa enjoys seeing people from all walks of life working out next to each other towards the same goal. She believes that having this fitness family keeps members motivated and makes Xtra Mile Fitness special. Christa is excited to help each person that walks through the door reach their fitness goals.

Tina Smith coach at Xtra Mile Fitness

Tina Smith


As a coach, Tina is dedicated to not only getting you to move properly, but getting you to move well. Knowledge is power and she is committed to helping you understand movement and how to address mobility issues that might be getting in the way! Tina believes CrossFit is more an odyssey than a journey. In her humble opinion, the gateway to success in this sport is a relentless commitment to fundamentals. As a coach she is steadfastly dedicated to the basics. Without a strong and proper foundation one cannot build consistency. Without consistency, it is difficult to achieve intensity. In CrossFit, it is through intensity that we get results! Tina says she is ” honored to be part of this amazing coaching staff. The community here at Xtra Mile is unparalleled and truly magical!”

Devin Mundy coach at Xtra Mile Fitness

Devin Mundy

Olympic Weightlifting Director and Head Coach

In 2012, Devin graduated high school and went on to Lindenwood University to study Exercise Science and pursue his passion in health and athletics. While at Lindenwood, he was recruited to the Olympic Weightlifting team where he found his love for competitive weightlifting. Devin began his journey towards coaching when he started shadowing the head coach of Lindenwood his freshman year. Shortly after, he became an assistant coach for Lindenwood’s weightlifting team. While at Lindenwood, Devin was a part of helping his team win four national championships, along with individually placing multiple times on a national stage.

Melissa Schwab coach at Xtra Mile Fitness

Melissa Schwab


Melissa started CrossFitting in 2009, about six months after her daughter, Zoey, was born. She has been a coach at Xtra Mile Fitness since it opened, following Corey from our old gym when he opened because she admires his passion for CrossFit and his attention to doing things the right way and offering an excellent fitness experience for each athlete. Melissa loves CrossFit because of how it fits each individual and is always changing. It is accessible to EVERY athlete and adaptable to fit each person right where they are, while also growing with them. She also loves the challenge of learning new things and constantly getting better every day. Not to mention, Melissa is super competitive. She loves competing against herself on a daily basis but also doing individual and team competitions. Another aspect she enjoys is getting to know all the wonderful people in the gym and watching them make changes in their lives. There is nothing cooler than seeing someone’s physique and outlook change over weeks and months. It is awesome! Teaching is in Melissa’s blood, and she loves to coach. If you ever need help, don’t hesitate to ask! Melissa is always here to help you achieve your goals.

Brad Jokerst coach at Xtra Mile Fitness

Brad Jokerst


Brad found CrossFit in 2010 after returning home from a trip to Hawaii. The surfing, and soreness that ensued, made him realize that he wasn’t quite as fit as he thought he was. He found CrossFit South City and was immediately obsessed. He would be a member and coach at the gym for nearly seven years. During this time, he found a renewed sense of competition and has competed in numerous regional events, including placing third at HOA in 2011. It was through CrossFit that Brad found his inspiration to become a firefighter and paramedic. He spent his first years in the fire service at The City of St. Charles Fire Department. He now proudly serves and protects the citizens of Xtra Mile’s community as a Firefighter/Paramedic for the Fenton Fire District.

Candace Bourisaw coach at Xtra Mile Fitness

Candace Bourisaw


It wasn’t until October of 2013 when Candace discovered and fell in love with Crossfit. Six months into her new found hobby, she competed in her first Individual competition and since has competed in a handful more of individual, couplet, and team competitions. As the years went by, Candace continued to enjoy the time she spent in the gym and started to get the idea of becoming a coach. It was then in March of 2019 when the opportunity came knocking on her door, and took part interning with Xtra Mile Fitness where she then studied and interned with some of the best Coaches in the St. Louis area. In May of 2019 she received her L1 and started solo coaching a few months later. She has enjoyed every minute of coaching new and veteran athletes, pushing them to their limits and seeing the excitement come across their face when they’ve hit a new lifting PR, or just got their first pull-up, or ran an entire 400m without stopping. Candace looks forward to the months and years to come, as she continues to grow personally as an athlete and as a coach here at Xtra Mile Fitness.

Abram Whitehead coach at Xtra Mile Fitness

Abram Whitehead


Abram was introduced to CrossFit in 2016. He often recounts walking through the doors with wide eyes and the intimidation of what he had heard about CrossFit. Like many, he was overweight, had poor mobility, limited skills and strength, and not the best self image. What he found was a coaching staff that was invested in his success and a community that was supportive, caring, and knowledgeable. It was everything he needed to call Xtra Mile home. Through his time at Xtra Mile, Abram has advanced every aspect of his fitness, competed in multiple events, and even became a USA Weightlifting Masters National Champion. Abram attained his CrossFit Level 1 certification so that he could bring his passion of life and fitness to others so that they might find their own personal growth. In this critical role of education, support, and encouragement, Abram always brings his unique blend of passion, performance ,and making fitness safe and fun!

Sam Dorner coach at Xtra Mile Fitness

Sam Dorner

Weightlifting Coach

In 2013, he graduated high school and enlisted in the Marine Corps. He served four years as an infantry squad leader and was honorably discharged in 2017. Shortly after that he started attending Lindenwood University as an exercise science major. While at Lindenwood he was a member of the Olympic Weightlifting team. During his time as a student athlete, he experienced both good and bad coaching which is when he began being more interested in coaching. He started bothering the coaches at Lindenwood to teach him more about coaching and found that it mirrored a lot of the aspects that he liked about being a leader in the military.

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