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Smash Flow Jiu Jitsu

5 ★★★★★ 29 Google reviews · BJJ gym in West Islip, New York

BJJ gym Free trial Affiliated Beginners welcome Kids & teens Private lessons No-gi Competition team

Affiliated academy — reviews and the gym's own info point to a recognized BJJ lineage or affiliation (think Gracie Barra, 10th Planet, Renzo Gracie, Alliance, Atos or Checkmat). If lineage matters to you, ask which affiliation the academy belongs to and under whom the head instructor earned their black belt.

Plan your first class

  • Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth BJJ classes — built around discipline, focus, and confidence
  • Private lessons private, one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • No-gi no-gi grappling classes — training in a rashguard and shorts, with faster scrambles and a natural bridge to MMA
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule smashflowjj.com — book classes and see the live schedule
  • Phone +1 516-595-6877

Hours

Monday 9 am–9 pm
Tuesday 9 am–9 pm
Wednesday 9 am–9 pm
Thursday 9 am–9 pm
Friday 9 am–9 pm
Saturday 9 am–1 pm
Sunday Closed

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

BJJ classes on the schedule at Smash Flow Jiu Jitsu, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 9 mentions

“I have both my kids and myself enrolled, and it’s been nothing but a great experience.”

All gyms that run kids bjj →

🏆 Competition Team 3 mentions

“Whether you're a 40 year old hobbyist, a 20 yr old hard core competitor or anything in between, he's the guy you want in your corner.”

All gyms that run competition team →

🛡️ Self-Defense

“Whether you're training for self-defense, as a hobby, or for competition, Nick has the knowledge and approach to help everyone succeed.”

All gyms that run self-defense →

🌱 Beginners 2 mentions

“He breaks down techniques in a way that’s easy to understand and always takes the time to ensure everyone, from beginners to advanced students, is learning and progressing.”

All gyms that run beginners →

Other martial arts here

BJJ gyms are usually multi-discipline. Here's what else members mention training under the same roof at Smash Flow Jiu Jitsu — mined from their reviews and the gym's own info.

🏟️ MMA

“I owe a lot of my MMA and Jiu Jitsu success to this man right here.”

Other gyms that also teach mma →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want MMA, muay thai, or wrestling alongside your BJJ, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 29 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 9 mentions

“West islip is soooo lucky to have a Bjj school opening with Professor Smash. Nick is such a great teacher and tons of experience with both adults and children!”

🌱 welcoming to beginners 7 mentions

“He breaks down techniques in a way that’s easy to understand and always takes the time to ensure everyone, from beginners to advanced students, is learning and progressing.”

🤝 no-ego, friendly academy 12 mentions

“He is a caring and supportive teacher that instills respect and discipline from students.”

📘 strong technique & fundamentals 6 mentions

“He breaks down techniques in a way that’s easy to understand and always takes the time to ensure everyone, from beginners to advanced students, is learning and progressing.”

🧒 strong kids program 3 mentions

“My daughter’s confidence and sense of accomplishment has risen in the past several weeks of attending.”

active competition team 9 mentions

“Whether you're training for self-defense, as a hobby, or for competition, Nick has the knowledge and approach to help everyone succeed.”

From the reviews

I've been training with Professor Nick for about 4-5 years now and I have nothing bad to say about him. Under his tutelage I have became a better Jiu Jitsu practitioner and a better a person. I owe a lot of my MMA and Jiu Jitsu success to this man right here.

★★★★★ — Ramel, May 2025

I’ve had the privilege of training under Professor Nick since 2019, shortly after he moved up from Fight Sports Miami and brought truly world-class jiu-jitsu to our academy.

★★★★★ — Jaworski, May 2025

Around 3 years ago, I started training with Nick. Right off the bat I knew he was the real deal. Very well rounded and has a deep as well as admirable understanding of jiu jitsu. He brings positive energy and good vibes to every class.

★★★★★ — Michael, May 2025

Nick is an absolutely amazing teacher and outstanding individual off the mat as well. Whether you're a 40 year old hobbyist, a 20 yr old hard core competitor or anything in between, he's the guy you want in your corner. He similarly has outstanding kids classes.

★★★★★ — Jim, May 2025

Excerpts from public Google reviews. Read all 29 reviews →

New to BJJ? Start at Smash Flow Jiu Jitsu

Smash Flow Jiu Jitsu comes up as a beginner-friendly gym — noted on their own site. If you've never rolled or set foot on a mat, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit or flexible to start — you get in shape by training, not before it, and coaches scale the intensity to you. Second, you won't be thrown into hard rolling — reputable gyms build fundamentals (positions, escapes, and basic submissions) for weeks, live rolling eases in gradually, and tapping early keeps every roll safe. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out, and leave your ego at the door. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

See their beginner class info

Your first BJJ class at Smash Flow Jiu Jitsu

Nervous about walking into a BJJ gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling basic positions and escapes with a partner — not hard sparring. Rest whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot on the mats. What to bring: water and a mouthguard if you have one — many gyms lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi (or a rashguard and shorts for no-gi) and a mouthguard. Live rolling eases in gradually, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

BJJ is a contact sport. Ease in, tap early and often, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Smash Flow Jiu Jitsu

939 Montauk Hwy # D, West Islip, NY11795

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.