Team & Affiliates
COACH ROZY COACHING & PERFORMANCE TEAM
Mark “Coach Rozy” Roozen started Coach Rozy Performance in 2014 when he came back to South Dakota, after working with the Cleveland Browns in the NFL. He has been a Strength & Conditioning Coach with the NFL and College programs as well as work with all levels of athletes from grade school to Olympians. He was Certification Director for the National Strength and Conditioning Association (NSCA).
Coach is the President and Owner of Coach Rozy LLC, his company that handles public appearances and speaking, consultant work, performance training and offering performance products.
He is also Co-Founder of LIVE PAIN FREE – The Right Moves, which helps folks move right and exercise right to eliminate pain and movement problems in work, life and play.
Coach Rozy is also part of of 911 Tactical Performance, an organization that does consulting, education and training with police, firefighters and military groups throughout the country.
His training methodologies have been successfully applied to the full spectrum of the population youth, geriatric, rehabilitation, and a wide range of athletes.
Carlos “Coach Los” Sanchez, CSCS, CPT is originally from Carson, California. Carlos moved to Sioux City, Iowa at the age of 9. He was working at a family business running a restaurant and bar when he met Coach Rozy. Since that time he has shifted to a career in Strength and conditioning/fitness. He joined Coach Rozy Performance the summer of 2020, working with teams at every level. In 2022 Carlos took over the position of Assistant Director and Head of Program Development with Coach Rozy Performance. Coach Sanchez enjoys working with all athletes and helping people get better and achieve their personal goals. His personal goal is to keep working on becoming a better coach while learning and gaining more experience in the strength and conditioning field.
As Carlos describes, “I just love watching young athletes get better and learn that through hard work and consistency all goals are obtainable.To get them to set the bar higher and continue to work to keep pushing to new levels is exciting. When you can see them evolving into a better version of themselves – that’s what gets my juices going!”.
Miles Rademaker has been with Coach Rozy Performance, first as an intern from the University of South Dakota (USD). After his internship, Miles started with Coach Rozy Performance in 2020. A graduate of Lake Preston High School in SD, where he as selected Lifter of the Year 2x and was a 4x letter winner in football and track, Miles received his Bachelors of Science in Kinesiology and Sports Management and a minor in Psychology, from USD.As well as working with Coach Rozy Performance, Miles also works at AVERA Wellness Center as a trainer and coach. “Building relationships with kids, and those I train – getting to see them grow and display their growth on the filed/court, or in the gym, is where I get my enjoyment and passion for working with Coach Rozy Performance. Also, I love the chance to help develop a love for training and fitness we get to build with the folks I’m around that they can use for the rest of their lives” Miles shared.
Ronette Karstens has been with the Coach Rozy Team since 2015. She graduated from the University of South Dakota with her Bachelors Degree in Education. She is currently a First Grade Teacher at the Gayville-Volin School District where she is Assistant Boys Basketball Coach as well as Assistant Track & Field Coach working with the jumpers. With Coach Rozy Performance, Coach Ronette does performance training, leads Group Bootcamps and is Coach Rozy’s Personal Assistant, helping oversee business operations and office management.
Ronette truly “did it all” while at Gayville-Volin High School; participating in Oral Interpretation, Flags, Cheerleading, Band, Choir, the School Newspaper, Yearbook, Softball and Student Council. She was named Salutatorian her senior year. As an athlete she was awarded the Raider Award (for best athlete) and Academic All-State.
Ronette was a star basketball and track athlete starting on the varsity team as an eighth grader. She was awarded most improved that year by her coach. She earned team MVP every year after that as a freshman, sophomore, junior and senior. her senior season she averages 13.4 points, 10 rebounds, five steals and 5 assists per game. She still holds schools records in the high jump and triple jump. With her past experience, knowledge and drive, she loves to work hard, focus and bring high energy to at all she does – helps her excel with the Coach Rozy Team.
Ronette has a husband, Justin who also coaches and is a part time assistant with the Coach Rozy Team. She has 3 boys, Caid, Spencer and Preston, whom she loves to spend time with and is involved with their athletic and school programs.
Justin Karstens, married to Coach Rozy Performance Coach Ronette Karstens, has been with the performance program since 2017. Teaching and Coaching boys and girls his whole career, Justin brings a wealth of knowledge and sports skill to the Coach Rozy Program.
Justin, who is a High School Principal as well as a Coach, has been at Gayville-Volin for the past 16 years, where he has also been Heads Boys Basketball Coach for the past 8 years (he was previously Girls Head Coach at GV before that) and has been an Assistant Football Coach for the last 10 years.
As mentioned, Justin’s wife Ronette also coaches and is an assistant with the Coach Rozy Team. They have 3 boys, Caid, who plays baseball at Mt. Marty College, Spencer and Preston, who are heavily involved with their athletic and school programs at Gayville-Volin School.
Trevor Woods, MA, ATC, a high school graduate of Bon Homme High School in South Dakota, Trevor has a bachelors degree in Athletic Training from South Dakota State University (SDSU) and a Masters Degree in Exercise Science from University of South Dakota (USD). He has been providing Athletic Training coverage to Yankton High School and Gayville-Volin High School since 2002, ran AVERA’s Accleration Program for 13 years before joining the Coach Rozy Performance team in 2014.
He continues to enjoy working with athletics both as a trainer and a performance coach, as he explains, “I really enjoy meeting new athletes and trying to make them the best they can be – and keep them healthy to maintain high levels of performance. I have a passion to teach proper movement to help reduce risk of injury in all the kids we work with”.
Sarah Shippy, MA, LAT, ATC, is a high school graduate of Colome High School in South Dakota, Sarah continued her education at the University of South Dakota (USD) and the University of Nebraska – Omaha to obtain her Bachelor of Science in Kinesiology and Sport Management and her Masters of Arts in Athletic Training.
Joining the Coach Rozy Performance Team in the Summer of 2022, and becoming athletic trainer to the MMU Football team in 2021, Sarah uses her knowledge she picked up while doing her internship at Syracuse University of the football team there and also working with the Omaha Lances USHL team.
“I enjoy being able to help athletes of all ages excel in their physical and athletic performance in a safe and team oriented environment” Sarah shared with Coach Rozy Performance.
Kevin O’Brien is a Physical Therapist in Yankton, SD with AVERA Scared Heart Hosptial. He works with Coach Rozy Performance and AVERA Sports Yankton. Kevin has specific training and skill in reducing patient pain and increasing mobility lost due to injury or illness. As a Physical Therapist, Kevin performs exercise therapy, endurance exercises, and pain and mobility assessments to help keep Coach Rozy athletes and members at their peak level of performance. If a need for Physical Therapy comes ups, having a team to help with total training and performance is key – and Kevin O’Briend and the team of Physical Therapist at AVERA Scared Heart are some of the best.
AFFILIATES:
911 Tactical Performance
Live Pain Free – THE RIGHT MOVES
Jeffrey Paul Salon
Theraband
