Crossfit freshwater

David Prince

Co-Owner | CF-L1 | CF-L2 | USAW CPR/AED Certified

David has always been active in sports (football, wrestling, lacrosse) and outdoor activities. He has coached high school wrestling for over 10 years, and is currently the varsity head coach at a local HS. David played college and semi pro-football. Additionally, he’s coached football at the high school, semi-pro, and professional developmental league levels. David is also a registered HS football, wrestling, and Lacrosse official. 

David started Crossfit in November 2014. He went through many years of beating down the same paths at the local "Globo" gyms. His overall health and fitness were deteriorating. He finally gave in and decided to try CrossFit. After spending at least 2 years researching and doing CrossFit style workouts on his own, he quickly found that piece that had been missing. CrossFit keeps him active, engaged, and brought out his inner competitor.  

David enjoys sharing his knowledge about the sport of fitness. David says “The best part about CrossFit, is that there is always something to improve and there are people around you encouraging you to find your best.”

Favorite Barbell Movement: Thrusters

Favorite WOD: Diane

Least Favorite WOD: Fight Gone Bad

Justin Jabara CrossFit Coach


Co-Owner | CF-L1| AED/CPR Certified

Favorite Barbell Movement: Thrusters

Favorite WOD: FRAN

Daniel Hartner

CF-L1| CPR/AED Certified

I’m a firefighter in the Metro Detroit area. I’ve lived an active lifestyle since I was a child. Playing all kinds of sports, I found soccer and played for a number of travel teams competitive in the Midwest until my freshman year of college. After a while of focusing on academics, I needed to find a better outlet than curls at the local 24 hour gym. I found CrossFit via the mainsite with a good friend back in 2013. What started out as workouts done on the elementary school playground behind his house, turned into doing WODs like “Linda” early on Sunday mornings at the globo gym we worked out at. It wasn’t until a mutual friend invited us to a free fit at his CF box that I decided to join my own. The same friend lifted with CANUSA Barbell Club, and my entrance into the weightlifting and Crossfit world was sealed. After about a year of steady training, I decided it was time to take on a larger role at the gym and got my CFL1. I continue to weightlift and do CrossFit because I truly believe there is no better test of your physical and mental fitness out there better than CrossFit. Other than that, I enjoy good beer, better scotch, and wheeling at the local pub. 

Favorite Lift: 1RM Snatch, and 1RM Clean Jerk.

My least favorite WOD: Anything with thruster/burpees. 

Gary Moroni

CF-L1 | CPR/AED Certified

Katie Prince

CF-L1, AED/BLS Certified

Like many others, I did sports when I was younger, ballet, softball, and then volleyball in high school. After high school, I stayed active, but never really had a work out routine that I enjoyed. I stumbled across CrossFit on Facebook in 2010 and joined immediately. I love the combination of fitness and family that it provides, and that it encourages you to be a better athlete every day. 

Like all the coaches at Motor City, Katie wants to see everyone improve and excel at the sport of fitness and reach their fitness goals.

Scott Ziegler

CF-L1, Professional Firefighter, Emergency Medical Technician, Tech Rescue Instructor, CPR/AED certified


Scott is currently is a Firefighter for the City of Detroit Fire Dept. He started CrossFit when he realized he was not in the proper shape to do his job anymore. He continues to do CrossFit because his life, and the lives of others depend on his physical capabilities. The people he has met here motivate me to keep going. He also also teaches high angle rope rescue, and confined space rescue. He is an advocate for a nonprofit for firefighter health and fitness as well.

When he is not at the box you can find with his family. He enjoys everything and anything that includes the great outdoors, and if you bring him any sort of craft beer, you will be friends forever.  

Favorite WOD- Cindy. It was his first ever CrossFit WOD.

Least Favorite WOD- Fran. He hates thrusters, and anything with double unders.

Brenda Trudeau

CF-L1 | CPR/AED Certified

Brenda started coaching with us in 2017.


Justin farrell

CF-L1 Trainer

Justin joined our team of trainers in 2018.

Val Umpfenbach

Boot Camp Instructor