About
Our Gym
At Xtra Mile Fitness in Fenton, MO, we train people of all ages and experience levels to get stronger, move better, and build lasting habits. Whether your goal is fitness, performance, or personal growth, you’ll make progress in a focused, supportive space.
Corey Lewis
Founder
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!
Learn About
Our Coaching Team
The coaches at Xtra Mile Fitness are all about helping you move better, stay consistent, and reach your goals. With expert support and real accountability, you’ll have everything you need to succeed.
Antoinette Williams
Starting in the fitness industry in 2003, she went on to compete at the CrossFit Regional level in 2013 as part of a team. Over the years, she has coached and trained alongside some of the best athletes in the world, gaining valuable insight and experience.
Her passion lies in helping people improve their health, fitness, and overall quality of life. She thrives working with a wide range of clients—from beginners to advanced athletes, young to old, and everyone in between. Whether someone is eager and ready or hesitant and unsure, she meets them where they are.
What drives her most is helping people break free from feeling trapped in their bodies and empowering them to discover what they’re truly capable of.
Chelsey McMichael
Chelsey started her fitness journey at Lindenwood University, where she pursued a degree in Exercise Science. There, she found success as a member of the University Olympic Weightlifting team and Women’s Rugby team being a part of their national championship teams. After graduating, Chelsey delved into coaching CrossFit and running the Olympic Weightlifting program at a gym. She worked with the strength and conditioning staff at various universities, including Lindenwood, SLU, and UMSL. Along the way she got her Masters degree in Human Performance at Liberty University. She then worked in private personal training for 3 years with people of all ages and abilities. Before finding a home at Xtra Mile Fitness she had the incredible opportunity to serve as the head Athletic Performance coach for the Missouri Baptist University football team.
Outside of coaching Chelsey is an artist who specializes in blockprinting and making messes in my art studio. She loves nature, traveling and longboarding!
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!
Brenden Platt
In 2011, Brenden graduated college from Missouri State University with a BS in Kinesiology. During this time, he completed a 210-hour internship at Crossfit Springfield. It was during this experience that he realized his passion for helping improve the health, fitness, and wellness of others. Brenden believes the best investment you can ever make is in your own health. Crossfit provides a wonderful, unique experience and opportunity that allows individuals with all backgrounds the chance for their own personal investment in a fun, engaging way. Accumulating over a decade of hands-on experience and coaching hundreds of classes has allowed him to specialize in group fitness training, exercise prescription, fitness assessments, and weightlifting. As a coach, his goal is to ensure that members leave the gym feeling empowered and more knowledgeable than when they walked in. One of his favorite proverbs is – ‘Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime.’ It is more worthwhile to teach someone to do something for themselves than to do it for them.
Brittany Lewis
Brittany Lewis has been doing CrossFit since around 2011 and has been a dedicated member of the Xtra Mile Fitness community since its very beginning. She was immediately drawn to the variety, challenge, and supportive atmosphere that CrossFit offers. Over time, Brittany developed a deep passion for strength training and Olympic weightlifting. She finds feeling strong incredibly empowering and is especially passionate about encouraging others to embrace strength training and recognize its vital role in long-term health and well-being.
As a CrossFit Level 2 Trainer, Brittany brings both experience and technical knowledge to her coaching. Although not a full-time coach, she serves as a bench coach and typically leads classes about once a month. While she may not always be on the schedule, she’s consistently in the gym working toward her own fitness goals and supporting others. When coaching, Brittany focuses on helping athletes move safely, challenge themselves, and leave feeling accomplished.
In addition to her CrossFit expertise, Brittany is a Certified Nutrition Coach who believes in a balanced, sustainable approach to eating. She encourages clients to treat food as fuel while embracing moderation—recognizing that life’s pleasures, like the occasional donut or ice cream, are part of a healthy lifestyle. Her nutrition coaching focuses on creating realistic, lasting habits that support individual goals without unnecessary restriction or guilt.
Whether she’s coaching a class, training alongside members, or guiding someone through their nutrition journey, Brittany’s mission is to help people feel strong, capable, and confident—both in and out of the gym.
Julianne Wegmann
Julianne has had a lifelong passion for fitness. With a mom who was an avid fitness instructor and marathon runner, exercise has been a normal part of Julianne’s daily routine for as long as she can remember.
Julianne has explored all forms of workouts and group classes, and started CrossFit in 2019, inspired by two of her older sisters who were already CrossFit fanatics.
CrossFit has been her main mode of exercise ever since—the challenging nature of CrossFit and uplifting community got her hooked.
Julianne began coaching in January of 2024, with the desire to share her passion and knowledge of CrossFit with fellow athletes, and to help them push their limits & become their best selves. Even after a long day at her job as an electrical engineer, she shows up with her upbeat, positive energy, ready to lead CrossFit athletes through a great workout. Julianne’s favorite part of coaching is getting to see athletes push their limits and accomplish things they never thought they would.
Ali Seoud
My name is Ali Seoud, but inside the walls of the gym, most people know me as Coach Ali. My goal is simple. I want to positively impact as many lives as possible through fitness, consistency, and connection.
I believe fitness should become a habit, not a chore. While there are countless shortcuts and quick fixes advertised today, real progress comes from building routines that fit into your life. The process is not always easy. There will be challenges and setbacks along the way, but the long term goal always remains the same. Creating a sustainable lifestyle that supports your health and well being.
Fitness has been a part of my life for as long as I can remember. Early on, it became my outlet and my escape. As I grew into adulthood, that passion evolved into a career of coaching others. Through my own experiences, formal education, and nearly a decade of professional coaching, I have learned how to help people make fitness a lasting part of their everyday lives.
One of the most rewarding parts of coaching is getting to know each individual and understanding their routine, their motivations, and the obstacles they face. I meet people where they are. I have worked with professional athletes, parents who want to stay healthy for their kids, and individuals rebuilding strength and confidence after injuries. Every person brings a different story, and that story guides how I coach.
There are standards in fitness, but there is no single formula that works for everyone. The right approach is the one that works for you. My role is to help you find that approach and turn fitness into something that supports your life rather than disrupts it. Together, we focus on building routine, discipline, and confidence. Once those pieces are in place, everything else begins to fall into line.
The journey can be challenging and demanding, but it is also incredibly rewarding. Over time, you will feel stronger, more capable, and more confident in your everyday life. My goal is to help you reach that place and show you what is possible when fitness becomes part of who you are.
Maria Alexopoulos
Maria Alexopoulos is a certified personal trainer and nutrition coach with a strong background in exercise science, rehabilitation, and performance. She earned her Bachelor’s degree in Exercise Science from the University of Evansville and her Master’s degree in Sports Science and Rehabilitation from Logan University. During her time at the University of Evansville, Maria also competed as a Division I soccer player for four years, an experience that shaped her understanding of performance, resilience, and what it takes to build a strong and capable body.
During the final phase of her master’s program, Maria completed a clinical internship in a rehabilitation setting, working alongside professionals who treated both athletes and individuals from the general population. This experience deepened her understanding of injury prevention, movement mechanics, and long term physical health. It reinforced the importance of building strength and movement strategies that support real life, not just time spent in the gym.
After graduating in 2024, Maria began coaching a wide range of clients in both fitness and nutrition, with a strong focus on individualized coaching. She previously worked as a personal trainer at BFit Fitness and Gyms in Evansville, Indiana, where she helped clients improve movement quality, build strength, and create sustainable routines that fit into their everyday lives.
Maria is most passionate about helping people truly understand their bodies and how they move, adapt, and respond to training and nutrition. She believes education is a key part of effective coaching and strives to empower clients with the knowledge and skills needed to take ownership of their health and fitness. Her goal is not just to guide workouts, but to help people build confidence and improve their overall quality of life.
Joining Xtra Mile Fitness has allowed Maria to continue growing as a coach while connecting with members in a meaningful way. She values the coaching based approach and the supportive community that helps people build strength, move better, and feel more confident in their everyday lives.
Kaelyn Lowery
Advanced Equipment
Xtra Mile Fitness is equipped with everything you need for effective training. You’ll find barbells, kettlebells, dumbbells, rowers, sleds, plyo boxes, battle ropes, medicine balls, squat racks, and more.
Whether you’re building strength, training for performance, or staying active, our setup is designed to support your goals every step of the way.
Premium Amenities
Xtra Mile Fitness boasts a spacious, open layout facility designed to maximize your training experience featuring designated areas for personal training, our ladies strength training, our group classes, and our kids programs. Our unique outdoor workout space allows clients to train in the fresh air, adding variety and excitement to their routines. Additionally, we provide showers and a locker room to make sure you have everything you need to get in your workouts on a daily basis.
