Our Strength training team
john renzi
Bachelor of Science in Secondary Education; Kansas State University 
John grew up in Overland Park, Kansas, and graduated from Kansas State University in 2005 with a teaching degree. His interest in fitness started in middle school with a fascination with bodybuilding, which continued throughout his teens and 20s. John had shoulder and elbow surgeries in consecutive years during college, so while his peers were busy playing ball, he picked up coaching to stay in the game.
After two years of teaching and coaching, John spent seven years in outside sales. As the sports performance industry emerged in the past decade, John finally saw an opportunity to open his fitness business. With a perfect background of teaching, coaching, and fitness, and in the perfect town to do it, John opened Renzi Performance & Wellness (RPW) in 2013. John began with a handful of softball players and a few of his friends as his clients; within three years, he had established himself as one of the most trusted sources in town for baseball and softball training.
John met Matt Hinkley in 2015, and the two quickly realized the similarities in their training philosophies. They knew right away that they would rather work together than compete, and in 2016, they formed a partnership to create Kansas City Strength & Conditioning (KCSC).
Master of Science in Exercise Science; Concordia University ryan costanza, m.s.
Bachelor of Science in Kinesiology; Washburn University 
Ryan’s been at Kansas City Strength & Conditioning since 2019 and helps train our adults and athletes. He also assists with individual program design. He has a unique foundation for understanding the human body and performance training.
After completing his undergraduate degree at Washburn, Ryan worked as a trainer at 68 Sports before deciding to further his education as an intern for Stanford University’s football program. Shortly after he began at KCSC, Ryan completed his master’s degree in exercise science and then received his EMT-P certificate.
If you’re an adult who’s interested in improving your health and wellness, Ryan is as qualified as anyone in the KC metro to help you.
bree solis
Bachelor of Science in Kinesiology; University of Central Missouri 
After graduating from Lee’s Summit High School, Bree attended Longview Community College, then graduated from the University of Central Missouri with a B.S. in Kinesiology. In college, she served as an athletic trainer and an assistant high school track and field coach.
Bree’s current focus is Olympic lifting, and she will compete in her first competition in July 2024. Growing up, Bree’s athletic experience was developed mostly through competitive dance. She was a cheerleader for the KC Comets for two years and is a current member of the KC Current Hype Crew.
Paige Robbins
Bachelor of Science in Nursing; Washburn University 
Paige is a full-time ER nurse with a metro hospital group and works at KCSC a few days per week. Most of the younger clients are unaware that Paige was one of the first clients to train at KCSC — before it was called KCSC, before there was any equipment, before it had employees, a website, or a facility lease. Paige has played a huge part in the development of KCSC’s philosophy on training youth and college athletes.
Paige was an all-state outfielder at Blue Valley High School and was an everyday player her junior and senior seasons at Washburn, where she graduated in 2023.