Meet the Coaches

We're the Miller Brothers, Raymond and Seth. As university certified educators we founded Spectrum with the desire to use our teaching skills in both academics and in martial arts. Spectrum aims to offer the most modern and comprehensive instruction with techniques both on and off the mat.

We hope to enrich the community we grew up in and want to avoid high tuition and the unnecessary nickel-and-diming that martial arts businesses are notorious for.

We both hold a purple belt and a blue belt in Brazilian Jiu-Jitsu, but we have been training in the martial arts for over a decade. In our academy we seek to provide and maintain an ever-growing arsenal of the most efficient and proven techniques. The focus will remain on producing supreme martial artists, athletes, and people rather than simply a belt to show off.

Our aim is to train others to improve their mind and body by learning the techniques of Brazilian Jiu-Jitsu, wrestling, kickboxing, and much more. We invite everyone to experience the full spectrum of martial techniques.

Nate Pailen

Professor Nate is SMA's Brazilian Jiu-Jitsu expert. Nate has over two decades of martial arts experience. He holds a first degree black belt in BJJ, a black belt in Taekwondo, has experience in wrestling and Sambo,  and is a 15 year US army vet.

Crystal smiles-tharp

Coach Crystal leads our womens Brazilian Jiu-Jitsu classes! Crystal has been at Spectrum since the very beginning. Crystal is a blue belt in Brazilian Jiu-Jitsu, but has a long history of training in the martial arts. Crystal is also a police officer in the Shepherd University police department.

Jon Guzey

Jon Guzey is SMA's Krav Maga expert. Jon is a level 8 instructor of Krav Maga with over 12 years of experience. He also holds a purple belt in Brazilian Jiu-Jitsu.

Adria spiess

Miss Adria is Spectrum’s administrative assistant! She is ready to assist you with anything from payments to gear to showing you how to do an armbar! 

Kathryn Bellacosa


Kathryn Bellacosa is SMA's yoga expert. Here's what Kathryn has to say about Yoga:

"I initially sought out yoga as a gentle tool to enhance my fitness goals - to improve my flexibility and strengthen my core - while allowing my body a breather from the more vigorous forms of exercise I enjoyed.  What I found was not only a low-impact path to greater flexibility and strength, but a much deeper connection to my breath and how to use it not only in exercise and daily tasks, but also for relief from stress and anxiety.  

What makes yoga different from traditional exercise is that it has the unique capacity to bring our attention to the mind, body, and breath; simultaneously bringing all aspects of oneself into one line of focus. In other words, yoga harmonizes our entire being, leading to a healthy, limber body, and a calm, focused mind.

I would love to share this beautifully transformative practice with you and guide you along your own journey with yoga.  Yoga is for everyone.  There is no right or wrong body type, gender or age in yoga.  Be where you are!  

I have been doing Vinyasa Flow yoga regularly for more than 5 years and just received my RYT200 certification in early 2017.  My hope is to make yoga accessible to anyone willing to give it a try."