Our team

Our Founder

Timothy & Allison Muenkel

We are Timothy and Allison Muenkel, owners and operators of Keystone CrossFit. We established this gym in 2010 with the dream of doing the most good in our community, changing lives and helping folks achieve success in their health and fitness endeavors. That is exactly what we’ve done and we’d love for you to join us!

Our MISSION is to provide you with the best possible chance at living a healthy, happy life and reaching your full potential. Our Motto is SIMPLE. NEVER EASY. Regardless of your gender, age or current fitness level, the PATH to true Fitness is the same.

Keystone CrossFit will provide you with the instruction, guidance, motivation, and community you need to get on the PATH and follow it until you have reached your full potential.

Our Coaches

Tim Muenkel

Tim was introduced to CrossFit in 2007 while operating in Iraq as an infantry officer in the United States Marine Corps. He was instantly hooked. After leaving the Corps in 2008, Tim immediately began training athletes in the methods of CrossFit. He quickly got certified as a Level I Trainer and followed that up soon after with an Olympic Weightlifting Certification.

When the opportunity arose and everything felt right, Tim took the leap to open an affiliate. Tim’s experience as a trainer and instructor are not limited to CrossFit. For 7 years, Tim trained infantry Marines in the art of war. He spent much of his time in the Corps planning and conducting training in mountain warfare, urban operations, basic and advanced combat marksmanship, as well as becoming an instructor in Marine Corps Martial Arts. Tim has 2 combat tours in Iraq and 1 in Afghanistan. He spent 2 tours as a trainer embedded with the Iraqi Army and the Afghani Army. Over the past 11 years, Tim has dedicated his free time to the art and sport of Judo. He is a 1st Degree Black Belt in Judo, an assistant instructor at Gracie NEPA Judo Club and an avid competitor. Tim also has 2 years of training in Brazilian Jiujitsu under Jeff Reese, head JiuJitsu instructor at Scranton MMA. Tim is a blue belt in Gracie Jiujitsu In October 2010, Tim attended the CrossFit Movement and Mobility Certification Course. This will allow him to better train athletes in the daily maintenance of their own bodies. Through proper mobilization of the joints, something crucial to all great athletic movements, Tim will be better able to help all of his athletes reach their full potential. To satiate his constant thirst for knowledge and help improve the future of this great country, Tim recently attended the CrossFit Kids Certification Course, allowing him to finally offer the amazing benefits of the CrossFit program to children. Keystone CrossFit Kids will become possibly the most important part of career, something he takes very seriously. The future health of our children is at stake.

Coach Tim’s Certifications:

Certified CrossFit Trainer – Level 3
CrossFit Level 2 Certified Coach
CrossFit Level 1 Certified Coach
CrossFit Gymnastics Certification Course Staff Member
CrossFit Olympic Weightlifting
CrossFit Movement and Mobility
CrossFit Kids Certified Trainer
CrossFit Kettlebell Trainer
CrossFit Gymnastics USA
Weightlifting Sports Performance Level 1 Attitude Nation Level 1 (2013, 2014)
Mash Elite Performance Level 1
MDUSA Catapult Certification
Enderton Strength Weightlifting Seminar
Former Captain – United States Marine Corps
Black Belt in Judo
Blue Belt in Jujitsu

Allison Muenkel

My favorite part of my job is helping people reach their full potential and overcome obstacles that they've encountered in the past, all while having fun and building meaningful relationships. While not at the gym, I enjoy cooking and gardening, vacationing at the beach, and date nights with my husband.

Something that people may not know about me is I am a California girl at heart and I’d love to open a food truck. My favorite CrossFit workout is Annie. Best CrossFit movement/lift is the Snatch Not-so-secret worst CF movement are bear crawls!

Coach Allison’s Certifications:

CrossFit Level 1 Certified Coach
CrossFit Kids Certified Coach
USA Olympic Weightlifting Level 1
Certified Sports Performance Coach
CrossFit Gymnastics Certified Coach
CrossFit Olympic Weightlifting
CrossFit Scaling Attitude Nation Olympic Weightlifting Level 1 (2013, 2014)
Donny Shankle Seminar – 2013 Mash Elite Performance Level 1 (2013)
Member of the Weston A. Price Foundation Freestyle Connection Movement Seminar with Carl Paoli (2014)

Jessica Best

Back in 2012 I decided to take control of my health and lost over 100lbs. I dedicated every day to eating healthier and working out at home to my Jillian Michael's DVD's. She was my #1 motivation and role model. After many years of doing that, I just got bored and wanted something different and more challenging.

I set up an Intro Session with Tim here at Keystone CrossFit in September 2016. I joined and was instantly hooked. One year later, I was employed by Tim doing the backend and administrative parts of running the gym.

Slowly I became intrigued with the thought of one day being a Coach. I say slowly because it took about 5 years to muster up the courage and to feel knowledgeable enough to help others. I didn’t just want to be a Coach, I wanted to be a great Coach. So, in September 2021 I went for my Level 1 Certification and passed!

I wanted to become a Coach because CrossFit was and still is the one thing that brings me great pride in myself, and I wanted to be a part of that with every single member’s journey. To celebrate the wins, to watch them PR a lift or to achieve a movement that they worked so hard to get. My favorite part is getting to see that same pride on their faces.

Next up for me is to get my Olympic Weightlifting and Gymnastics certification to further my education in my coaching journey.

Other than CrossFit, I spend my time baking, taking care of my garden and loving cats!

Coach Jessica’s Certifications:

CrossFit Level 1 Certified Coach

Nikki Diette

Hi! I'm Nikki. In addition to being a CrossFit L1 Trainer, I also hold a PhD in Biology from St. John's University in Queens, NY. As a professor at Keystone College, I teach courses on nutrition, genetics, human physiology, cellular, cancer, and molecular biology. My two greatest passions in life are science and CrossFit. Not only have I devoted my life to studying both- but I also believe them to be inextricably linked. CrossFit makes sense in my brain because the physics behind the movements are beautiful, the quantifiable nature of everything we do makes progress undeniable, and the fitness it provides protects us from and reverses disease, unlike any other program.

I first fell in love with CrossFit in the early 2010s when my dear friend and coach introduced me to the sport. In the years following, I dabbled in other exercise programs but always returned to CrossFit. I had been chronically overweight since childhood, but the CrossFit prescription aided in my loss of over 50 pounds, and my life has changed (for the better) ever since. I have maintained that loss of over 50 pounds for more than 10 years, thanks to habits I obtained through my exposure to CrossFit. When I moved to NEPA and joined Keystone CrossFit in 2021, I was welcomed by the warmest members and most talented coaches I’ve met anywhere, and I knew this was the place for me.

I know very well how hard it can be to take control of your health. I know how hard it is to face incredible physical and emotional challenges and feel like you do not want to get out of bed, let alone get to the gym to work out. For a long time, I have wanted to dedicate my energy to helping my fellow humans become happier, healthier selves, and where better to do this than at Keystone CrossFit?

When I’m not teaching school or coaching gym classes, I enjoy being outdoors, especially hiking, traveling, all things Disney, trying new foods, the occasional yoga class and walks in the park with my dog, a border collie named Kimchi.

I love people. I believe in CrossFit. Let’s do this. Together.

Nikki’s Certifications:

CrossFit L1 Trainer

NSC First Aid, CPR & AED Certified


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