At CrossFit Lilburn 678, we realize that starting a regular exercise routine, effectively developing your fitness, and creating a healthy lifestyle can be intimidating. While we do have many excellent lifelong athletes as part of our family, we are a gym focused on helping the regular individual become their best. 


Our mission is to transform lives. Not just physically – but MENTALLY as well. You Can Do This! It is never too late.  We have trained everyone from competitive athletes to the everyday person and watched them transform into the goals they set. We are the ones that keep them on TRACK!



Boxes are communities and families. The owners and coaches are spouses, siblings, and best friends. They have community roots and they welcome members warmly into their circle.

Dr. Robert "Doc" Pruni

Founder, Chiropractor, American Ninja Warrior

Dr. Robert Pruni has been a Chiropractic Doctor for over 20 years. He is an ACE Certified Personal Trainer, has a CrossFit Level 1 Trainer Certification and is a Professional Ninja Warrior – having been on the American Ninja Warrior TV show several times.


Dr. Pruni or as we affectionately call him “DOC,” brings not only CrossFit training to his members, but using his vast knowledge on mobility, flexibility, and his therapy methods provides specialized training to members and teaches his coaching staff these methods, thus giving all members this benefit. His mission is for each member to reach their peak potential and optimal health. Through guiding each member in establishing a healthy lifestyle and making consistently good choices.

Radostina Vasilieva

General Manager, OCR Athlete

Radostina comes to us from the Obstacle Course Racing world. She has a unique understanding of all aspects of our gym and the fitness world from learning many disciplines of training. “Radi” as she is affectionately known, has stood on the podium numerous times and qualified for the North American and World Championships four times. 


Our spirituality is linked to nature. Closer to natural movement is how we should train. Nothing embodies this more than the philosophy of CrossFit. Performing Functional Movements at High Intensity!

Jordan Boswell

Head Coach, CF L1

Jordan grew up in the woods of northeast Alabama. He has always had a love for fitness and training as shown by his dedication to high school sports where he was on the Varsity football and baseball teams. Coach Jordan is a combat veteran and served as an Infantryman in the US Army. He was honorably discharged in 2015. He earned his personal training certificate and began coaching as the head trainer for Planet Fitness.


He went to a drop in at a Box and fell in love with the Crossfit methodology of encompassing whole life changes. He has experience in training tactical/armed forces, strength athletes, and everyone in between. Coach Jordan is a CF-1 certified trainer, a certified fitness nutrition coach, and a certified personal trainer.


4153 Lawrenceville Hwy Suite 13,

Lilburn, GA 30047

Phone: (678) 671-3539

Email:  DocPruni@NinjaKour.Ninja

Working Days/Hours:

Mon - Fri / 5am open (closed Noon - 3pm) 3 to 7pm 
Sat / 9am - 1pm 
Sun / Closed

Authorized CrossFit Training Center

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