Who We Are

Our highly-qualified coaches are dedicated to you and each and every class they lead. We understand your goals – we’ve been there and we’ve coached members through every imaginable fitness goal. From the smallest (but not always the easiest) to the seemingly impossible, we’re here to help and guide you through them all.

Kelly McGriff-CulverOwner, Head Coach

Kelly has worked in the sports performance field and fitness industry since obtaining her B.S. in Exercise Science from Illinois State University in 2008. She has trained athletes at professional levels to include the NFL, NHL, MLB, and WPS, as well as helped over 100 high school athletes receive college scholarships for athletics. Kelly’s passion is in motivating people to achieve their goals. For her, CrossFit provides the perfect venue to keep her athletes motivated, challenged, and having fun with an element of competition, to keep them constantly working toward their athletic and aesthetic goals.


  • Bachelor of Science in Exercise Science and Kinesiology
  • CrossFit L-1
  • CrossFit L-2
  • Certified Strength & Conditioning Specialist (CSCS)
  • Certified CrossFit Judge
  • Intrinsic Biomechanics Trainer (ITS)
  • First Aid/CPR/AED (American Red Cross)

Melissa DonoghueOwner, Head Coach

As a former collegiate softball player, Melissa has been playing sports her entire life. In May 2012, a coworker introduced her to CrossFit and she knew immediately it was a perfect fit. As a coach, she likes to encourage athletes to challenge themselves to improve every day whether it is increasing weight or focusing on better form.


  • Bachelor of Science in Exercise Science
  • CrossFit Level 1
  • CrossFit Level 2
  • First Aid/CPR/AED (America Red Cross)

Jared McGriff-CulverOwner, Director - Iron Flag Athletic Performance, Head Coach

Jared attended The University of Missouri where he received his degree in Sports Marketing and Sports Management.  He played football and was a 4-year letterman. There he interned for both Missouri strength and conditioning and Missouri athletic training.  After his career at Mizzou he went on to play for a short period with the Oakland Raiders (NFL) and the Jacksonville Sharks (AFL).


  • Bachelor's of Sports Management
  • Crossfit L-1
  • First Aid/CPR/AED (America Red Cross)
  • Crossfit Judges Course
Coach Guy

Guy PetruzzelliCoach

As a 42 year old professional athlete, who, at the age of 20, found a real passion for multi-sport, was forced to take some time away. I was hit by a car in 1996, leaving me rather injured and finding a comeback difficult. So I finished law school, passed the Illinois Bar exam and thought my time in the sport was over.

As the 2010 season started to heat up in June, I was out for a training ride and once again, hit by a car. This time, I was left with a broken right collarbone and 3 broken ribs. My doctor insisted that even with surgery, I would miss the remainder of the season and would most likely not even be able to train hard until the start of 2011. I had started training at Crossfit DuPage in May 2010, and knew that Crossfit would help me get back healthier and fitter than ever.

With the help of Brian MacKenzie, founder of Crossfit Endurance, I was able to achieve 2 things in less than 5 weeks – continue to speed up my healing process, and improve fitness. When I went to see my doctor at week 9 post-surgery, the x-rays showed 90% bone growth. This wasn’t by accident; this was due to following Crossfit Strength and Crossfit Endurance principles. Best part, I’m still improving. To spread the word of my recovery and passion, I was the focus of a Triathlete Magazine article in the February 2011 edition, written by TJ Murphy. I was then added to the book written by Brian MacKenzie in November 2012 – “Power, Speed, Endurance, a skill based approach to endurance training”, and featured in Chris Solomon’s article in the January 2013 issue of Outside Magazine, where Chris chronicles his use of CrossFit Endurance to train for a marathon. To prove that I practice what I preach, I’ve been working with Cody Burhardt, head coach at Athlete’s Cell, to help me reach my current world rank of 11th in Duathlon.

My goal is 3 fold – to constantly build on the success I have had in racing particularly in the last 2 years, having stood atop the podium at every distance of racing 21 times, and see this sport continue to grow, change lives for the better and gain the mainstream attention it deserves. But above all, I want to impact the lives of the people I come in contact with, helping them realize there is an athlete in all of us, and that once we stop becoming our biggest obstacle, anything is possible. So, stay strong.


  • Crossfit Level 1
  • Crossfit Level 2
  • Crossfit Endurance Coach
  • NASM certified Personal Trainer
  • Precision Nutrition Coach
  • Vipr Certified
  • First Aid/CPR/AED (America Red Cross)

Connor RileyOlympic Lifting Coach

Connor started his coaching experience at Western Illinois where he taught an Olympic weightlifting class.  He truly has a passion and love for the sport so from the University of Illinois- Chicago Strength and Conditioning Center where he trained/coached division 1 athletes. He’s been weightlifting for over two years now and at his very first competition he qualified for collegiate nationals. Connor is also experienced in personal training for over 6 years.


  • Bachelor of Science in Exercise Science
  • USAW-L1
  • First Aid/CPR/AED (America Red Cross)
Coach Violet

Violet MakeCoach

Violet is a former collegiate athlete who played basketball and soccer. She spent a year playing semi-professional women’s tackle football for the Chicago Force. After personal training for 2 years she went onto a nursing graduate program. During the program, she joined her friend at a Crossfit box near campus and immediately fell in love. Once finishing her nursing degree, she found interest in coaching Crossfit. She enjoys combining her passion for fitness, health, and wellness into her coaching.  Her nursing degrees aids in giving her a strong knowledge set of how the body works in regards to fitness and exercise. In her free time she is training to be a competitive Crossfit Athlete.


  • CF-L1
  • First Aid/CPR/AED (America Red Cross)

Conor DonoghueCoach

The years after playing multiple sports in high-school and being active throughout college, Conor would occasionally run on treadmills and spend unproductive time on machines in large “corporate” gyms.  After his fiancé (now wife) Melissa introduced him to Crossfit back in 2013, he knew he was onto something.  He lost 40 pounds in less than a year and made huge strides in his fitness, nutrition, and overall health.  Conor’s goal is to continuously challenge members to become the best versions of themselves.

“The moments I treasure most are when members apply what we as coaches teach them and improve their ability to do movements.  Whether it be improving a lift, executing better kipping, stringing together a few Double Unders, or getting their first handstand.  Whatever the win is, the look of accomplishment on the member’s face as a result of the work they’ve put in is by far the most rewarding part for me…”

“If you want something you’ve never had… you must be willing to do something you’ve never done.”  – Thomas Jefferson


  • CF-L1
  • First Aid/CPR/AED (America Red Cross)