At Warrior Legion we believe in making fitness accessible to everyone. Our training incorporates functional fitness which we firmly believe should be a staple in all exercise routines; it greatly benefits all athletes regardless of their current fitness level. Our programming is carefully curated so that better overall fitness and good health are attainable.
We consider our community to be our greatest triumph. Warrior Legion is a space that allows us to connect with other athletes. A place where we can share challenges and successes, solicit advice or support, and celebrate each others achievements. Together we can crush goals, join our fitness family!
Terri DeFilippis a lifetime resident of Riverhead is the co-owner and coach at Crossfit Warrior Legion as well the owner of its sister gym Crossfit Impervious. Terri is certified in both level 1 and level 2 and also holds certifications through MetaFit and Adaptive Athlete Alliance.
Terri’s love of community and hard work are evident in every facet of her life. She is consistently the hardest worker in the room, constantly motivating members through action.
Terri’s newest passion is training athletes for the multiple divisions of competitive body competitions. She’s incredibly driven and proudly ranked number 1 in the body building division of the NPC New England Championship in Boston and took 4th in the Physique division. You’ll be hard pressed to find a more enthusiastic and well rounded coach!
John Feinberg is an east end local, Crossfit coach and athlete since 2013. John is certified in both level 1 & 2 and has multiple accreditation’s from jump rope and gymnastics courses.
Before discovering CrossFit, John was a passionate cyclist participating in both road and cyclo-cross races as well as an avid runner, competing in innumerable road races.
John’s coaching is an invaluable asset at the gym. His wealth of knowledge and eagerness to instruct form, technical strength, gymnastic work and everything in between is what sets him apart. John’s meticulous attention to detail makes it second nature for him to dispense helpful advice!
Diana Feinberg is a Hamptons based Crossfit coach and athlete since 2013. Diana is certified in both level 1 and level 2 and has multiple accreditation’s from jump rope and gymnastics courses.
Diana has been a lifelong athlete, she was a division 1 collegiate swimmer at prestigious UMass Amherst. Post college she has competed in multiple triathlons and marathons throughout the east coast.
Diana graduated with a Bachelor's Degree in Exercise Science from UMass Amherst and a Master's Degree in Occupational Therapy from NYU giving her a profound understanding of developing, recovering, improving, and maintaining the skills needed for daily living.
Diana can be seen at class with a giant smile, ready to greet each athlete and be their biggest cheerleader!