Hill Street Boxing · Southampton & Riverhead
Meet Your Coaches
Real boxing technique, serious conditioning, and coaching that meets you where you are. Our coaches train first-timers, kids, and competitive fighters at both East End gyms. Find your coach, then request a private session.
- Private sessions: 30 or 60 minutes
- All ages and experience levels
- Mitt work, ring work, strength & conditioning
Owner & Co-founder
Thomas “Big T” Haynia
Owner & Co-founder
Big T co-founded Hill Street Boxing with Avery Crocker in 2018 after finding his own love of fitness through boxing, and set out to bring a true boxing and fitness gym to the Hamptons. A USA Boxing certified coach, he is known for high-intensity workouts that push every member to work hard.
Request a session with Big TPrivate sessions with Big T are subject to availability.
Location
Southampton
33 Hill Street, Southampton, NY 119685 coaches Gym info
Avery Crocker
Southampton Head Trainer
Born and raised in Southampton, Avery co-founded Hill Street Boxing and leads our Southampton team. He sharpened his craft at Brooklyn’s famed Gleason’s Gym under former middleweight champion Iran “Blade” Barkley. A USA Boxing Level 1 certified coach, he is known for creative mitt combinations, a sharp eye for technique, and coaching kids and adults.
Request a session with AveryJulius Anglickas
Trainer
A Southampton High School graduate who wrestled for the Mariners, Julius came to Long Island from Lithuania as a teenager and went on to a professional MMA career. He won the LFA light heavyweight title and fought for the Bellator light heavyweight world championship, and he brings that pro experience home to Southampton.
Request a session with JuliusOlivia Dispenziere
Trainer
An amateur boxer, Olivia coaches at our Southampton gym, where she and Sebastian lead adult boxing classes that members love for their energy and their playlists. Ask about private sessions with Olivia through the inquiry form below.
Request a session with Olivia
Sebastian Zellmer
Trainer
Born in New York City and raised in Southampton, Sebastian found boxing during the pandemic. At the University of Delaware he founded the boxing club, captained its competition team, and placed second at the NCBA Eastern Novice National Tournament. His private sessions sharpen technique and build fight-ready conditioning.
Request a session with Sebastian
Colleen Glinton
Trainer
A functional fitness and mobility coach, Colleen offers personalized stretching sessions along with strength and conditioning training. She is a CrossFit Level 1 certified coach and holds a Precision Nutrition certification, so her sessions build strength while keeping you moving well.
Request a session with ColleenLocation
Riverhead
1074 Pulaski Street, Riverhead, NY 119015 coaches Gym info
Grant Keelan
Riverhead Head Trainer
Grant grew up in Center Moriches and started boxing at age 7. He returned to the sport at Hill Street Boxing in 2020 and now leads our Riverhead team. A USA Boxing certified coach, Grant trains all ages and experience levels, from first-time boxers to experienced athletes.
Request a session with GrantIrakli Chopliani
Trainer
A former kickboxing champion who has competed since 2016, Irakli brings real fight experience to every session. He coaches boxing and kickboxing in both group classes and private sessions at our Riverhead gym.
Request a session with IrakliMike Webster
Trainer
A North Fork native, Mike competed as an amateur boxer and kickboxer, but his real passion is coaching. A certified personal trainer who coaches boxing, kickboxing and Muay Thai, he blends fight skills with fitness and adjusts his pace to each client, with a focus on defense and reading punches.
Request a session with MikeJustin Mattera
Trainer / Competition Team Coach
Justin heads the Riverhead Competition Team. A protégé of East LA trainer Dean Campos, he built his foundation in professional championship training camps, and his fighters earned 15 wins in the club’s first year of competition. He favors unconventional, awkward-and-different technique and builds fighters brick by brick.
Request a session with Justin
Doug Milano
Trainer
Doug brings a fighting background and high energy to Hill Street Boxing, with a focus on our kids program. He coaches a kids competition team as well as adult classes, and parents say he knows exactly how to get young boxers excited to keep coming back.
Request a session with DougPrivate training
Private Training Inquiry
Tell us who you’d like to train with and when. Your preferred trainer, days, and times are requests. Our team checks availability and follows up with you to book.
- Send your request
- We check coach availability
- We follow up to schedule
Fields marked required must be filled in before you can send.