About Us

Randy Nieves

Owner & Head Instructor

Randy Nieves is a seasoned martial artist and black belt in Jiu Jitsu. With a passion for coaching and sharing his knowledge. Instructing group classes and private lessons since 2018, Randy has a diverse skill set that is not confined to Jiu Jitsu alone. He has spent numerous years studying and practicing a variety of martial art styles. Including American and Thai kickboxing, folk wrestling, and greco wrestling, establishing himself as a well-rounded martial artist. Currently, he continues to refine his craft at both Vanguard Academy and Hamptons Jiu Jitsu, embodying the spirit of perpetual learning.

Through years of training, Randy has come to appreciate the significance of fundamental skills. Part of which is why his classes are attended by students of all levels. Randy believes that the best Jiu Jitsu athletes in the world have a strong base foundation. That they evolve with their own technical abilities. “Everyone can learn the basics, what makes Jiu Jitsu an art is how you use it.”

Randy is an IBJJF Certified Black Belt under Greg Melita, and Richard Byrne of Hampton Jiu Jitsu. He has also completed Safe Sport, CPR, and Refereeing courses through the International Brazilian Jiu Jitsu Federation in order to withhold the standards set by the federation, that protect the integrity of BJJ as a self defense martial art and a sport. His dedication extends to continuous learning through self-study, seminars, and competition.

As an instructor at North Fork Jiu Jitsu, Randy caters to all levels and offers private, and group-private lessons. For those seeking martial arts excellence, or a transformative experience both on and off the mat, contact us at northforkjiujitsu@gmail.com and elevate your skills with Randy’s expertise.

Kristen Falek-Nieves

Owner & Head Instructor

Kristen Falek-Nieves has immersed herself in the world of Jiu Jitsu since 2016, progressing from a dedicated student to a passionate instructor. Kristen earned her brown belt in 2022 under Richard Byrne, and Greg Melita of Hampton Jiu Jitsu. Currently she can be found training at Vanguard Academy where she is pursuing her black belt under Jason Rau and Nick Ronan.

Known for her gritty determination, playful silliness, and extensive knowledge, Kristen brings a unique and engaging energy to her classes. Her experience in movement and personal training can be seen in her teaching style as she walks her students through breathing and functional drills that aid them in Jiu Jitsu and life.

Inspired by the words of her father, who instilled in her the belief that one can be a fighter while maintaining a soft and kind demeanor, Kristen fulfilled her dream in sharing her knowledge through founding North Fork Jiu Jitsu. Her motivation behind this endeavor is to share the positive impact that Jiu Jitsu has had on her life, hoping to inspire and enrich the lives of others.

Kristen’s skills have been showcased in notable competitions, where she served as a Main Event Competitor at SOGI PRO and a Co-Main Event Competitor at Long Island Jiu Jitsu Network. Her achievements are complemented by a certification from the IBJJF and coupled with over 10 years of experience in Movement and Personal Training. Kristen is also CPR certified.

Kristen extends her expertise to students of all levels at North Fork Jiu Jitsu and is available for both private and group lessons. For further details regarding classes or bookings, please contact the academy at northforkjiujitsu@gmail.com.