Undefined Chi

Undefined has truly been life-changing for our family. Amy and I always thought we knew what to do to stay in shape, but working with Coach Billy has taken us to a whole new level. His attention to detail and the care he shows for everyone in the class are unmatched—even in larger classes, he somehow keeps track of every person. He has this uncanny memory for what weights each of us is lifting for different exercises, which makes every session feel personal and tailored. The gym itself is incredible—packed with every piece of equipment you could imagine. Billy keeps the classes fresh and challenging, constantly varying the workouts so we’re using various equipment each class. Our strength and mobility have improved dramatically. For those training for Hyrox, Coach Billy has all the official Centr Hyrox equipment and knows exactly how to prepare you for race day. On top of that, he’s recently started kids’ strength and conditioning classes, and our 9-year-old absolutely loves them. Billy makes the sessions so much fun that our son is always excited to go. If you’re looking for a gym and a coach who will push you, support you, and keep things exciting, Undefined and Coach Billy is simply amazing.

I am an undefeated professional boxer (6-0) with Coach Billy and Undefined Chi preparing me for my boxing matches. The level of expert coaching that is provided by this gym and this team under this vision and leadership is unmatched. The facilities are state of the art, massive, and honestly the most varied as far as type, quantity, and specificity of equipment which can match any goal or movement that is necessary. (Never waiting for a squat rack here either haha) Above and beyond the unequaled coaching that can elevate even the top 1% of competitors into the 1% of 1%, there are many other aspects that make this gym stand out. One of them is the community; The ethos that the leadership stands staunchly on guides the tone of the entire gym and therefore attracts community members that are kind, driven, supportive, intelligent, community focused, and goal driven. This type of community raises me to higher levels because we all raise each other up, all the while being supported and pushed by incredible leadership that truly cares. In addition to and complimenting the incredible coaching of Coach Billy, Coach Jackie is a powerhouse of knowledge, empathy, and leadership and exudes everything qualitatively and quantitatively anyone could ask for in a strong coach. Every puzzle piece is assembled here and is one of the main power plays that has and will keep me on track for a world title. I'm telling you, check this gym out!!!! See you tomorrow ;)

As someone who has spent my entire life in the fitness industry, first as a Division I collegiate tennis player and now an avid gym goer, this is the best gym I have ever been to! Jackie has been my personal trainer for four years and she has kept me injury free through a boxing match, a Hyrox event, and everywhere in between. Their weight room is state of the art. Their turf side is perfect for high-performance training. They have open gym hours, strength classes and one on one training. Look no further for your next gym and train with Jackie to accomplish your next fitness goal!

I’ve spent the majority of my life in fitness spaces (both as a competitive gymnast and now a regular gym goers) and this is by far the best place I’ve trained. I have been working out with Jackie for the last 4 years and it has been such a great experience. She has made sure that previous injuries aren’t aggravated and that new ones don’t occur and truly aims to help you hit your personal goals. All sections of the gym are set up to help you reach your goals and become the best version of yourself. I highly recommend Undefined and training with Jackie!

Undefined Chi is truly an amazing gym. Billy is an incredible coach — dedicated, motivating, and always pushing you to be your best — but what makes this place stand out even more is the whole coaching team. Every coach brings something unique, keeps the workouts challenging and interesting, and holds everyone accountable in the best way. The energy, support, and consistency from all the coaches make you want to show up and put in the work. If you’re looking for a place that will push you, keep you motivated, and help you grow, Undefined Chi is the spot. Highly recommend!