The Coaches

Black Dog CrossFit boasts a staff of highly competent and motivated trainers. Check us out:

Darren Marks

Owner of Black Dog CrossFit

CrossFit Level 1 Certified Trainer

USAW Olympic Lifting Level 1 Certified

CrossFit Endurance Running Certified



I was a former linebacker at Marietta College, where I received a degree in Petroleum Engineering. I was introduced to CrossFit in 2010. The "Filthy Fifty" was my first WOD, and after overcoming the urge to lose my lunch, I knew it was legit. I also enjoy competing and love traveling for competitions.

Since starting CrossFit, I have been in the best shape of my life and have improved on all of my max lifts, to exceed PRs from my peak college football days. In high school I played football, baseball, track and wrestling. I have completed two marathons so far, to include the OKC Memorial...in Vibram Five Fingers (do not try this)! Yes, you will see some high intensity cardiovascular workouts in my programming.

OKC Marathon Finisher: 4:20 (2011)

San Antonio Rock n Roll Marathon Finisher: 3:20 (2013)

Parkersburg Half Marathon fastest finish: 1:32

3x Tuff Mudder Finisher (Virginia, Georgia, Texas)

Before I became a gym owner, I worked as a MWD for Schlumberger. I am originally from Parkersburg, West Virginia. I have a crazy Lab, Huck...and you might see him every now and then hanging out at the gym! I am excited to bring Black Dog CrossFit to Lawton and to be a part of this great community.