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9Round Fitness Chelmsford

4.9 ★★★★★ 85 Google reviews · Kickboxing gym in Chelmsford, Massachusetts

Part of 9Round

Kickboxing gym Free trial Beginners welcome Cardio kickboxing Private lessons Affiliated

Affiliated gym — reviews and the gym's own info suggest it belongs to a known kickboxing or boxing-fitness franchise or network (think 9Round, iLoveKickboxing, CKO, TITLE Boxing Club or Jabz). Franchise gyms run a consistent class format and are often a friendly, familiar place to start. If a specific brand matters to you, confirm it on the gym's own site.

Gym chain offering kickboxing-style workouts and boasting attentive staff.

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 fitness levels welcome, including total beginners — no experience needed, and you get in shape by training, not before
  • Cardio kickboxing classes high-energy cardio kickboxing on the bags and pads — a fun, sweaty workout built for fitness and weight loss, at your own pace
  • Private lessons one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Today see hours ·
  • Website & schedule 9round.com — book classes and see the live schedule
  • Phone (978) 677-7968

Hours

Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Open 24 hours
Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours

Hours shift for holidays and class-schedule changes — worth a quick check before a special trip.

The classes they run

Kickboxing classes on the schedule at 9Round Fitness Chelmsford, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🔥 Cardio Kickboxing 8 mentions

“A great workout, in a great setting, with an awesome group of people.”

All gyms that run cardio kickboxing →

🥊 Boxing 2 mentions

“I went in on my first day and had no experience with any sort of boxing or kick boxing, however Jim and the team made me feel right at home and I haven’t looked back ever since.”

All gyms that run boxing →

Kickboxing Bootcamp

“The full-body, HIIT workouts are fun and challenging, combining strength training and cardio in a 30-minute session.”

All gyms that run kickboxing bootcamp →

🌱 Beginners

“I went in on my first day and had no experience with any sort of boxing or kick boxing, however Jim and the team made me feel right at home and I haven’t looked back ever since.”

All gyms that run beginners →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at 9Round Fitness Chelmsford — mined from their reviews and the gym's own info.

🥊 Boxing 2 mentions

“I went in on my first day and had no experience with any sort of boxing or kick boxing, however Jim and the team made me feel right at home and I haven’t looked back ever since.”

Other gyms that also teach boxing →

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 muay thai, boxing, or MMA alongside your kickboxing, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 85 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 2 mentions

“Amazing energy and great instructors who keep me motivated and always welcoming everyone with a big smile!”

🌱 welcoming to beginners 5 mentions

“I went in on my first day and had no experience with any sort of boxing or kick boxing, however Jim and the team made me feel right at home and I haven’t looked back ever since.”

🎉 fun, high-energy classes 6 mentions

“And with 24 x 7 access, you can get a great workout when it is convenient for you.”

💦 killer cardio workout 7 mentions

“It is a great way to start the day with a burst of energy or end the day by releasing frustrations from the workday !”

💗 welcoming to women 2 mentions

“If you’re a busy mom like me and struggle to find time for the gym, 9Round is a game changer.”

🤝 friendly, family gym 12 mentions

“The staff is so welcoming and helpful, especially when it comes to making sure you're doing the exercise correctly and challenging you.”

From the reviews

9Round Chelmsford is a top kickboxing fitness studio. The full-body, HIIT workouts are fun and challenging, combining strength training and cardio in a 30-minute session. The circuit-style format has no set class times. And with 24 x 7 access, you can get a great workout when it is convenient for you.

★★★★★ — Elisa, Aug 2025

Update: Today was a great workout with Coach Liv! She gave me lots of tips about how to correct my dumbbell Bent Rows. Awesome 1:1 workout as always! Update: this is my 9th month in this place and I love it!! It always has the positive energy and big motivations from very professional trainers. Highly recommend!

★★★★★ — Amani, Dec 2025

Not your average gym!!! I have been a member for years and I keep getting stronger and hitting goals I never thought possible. The trainers are knowledgeable and understanding… they push me hard but never demand I do something beyond my abilities.

★★★★★ — Taliesen, Sep 2025

Love 9Round! If you’re a busy mom like me and struggle to find time for the gym, 9Round is a game changer. The workouts are only 30 minutes, but they definitely get me sweating! One of my favorite things is that there’s no class schedule—you can show up whenever it works for you and jump right into your workout.

★★★★★ — Mel, Jun 2026

Excerpts from public Google reviews. Read all 85 reviews →

New to kickboxing? Start at 9Round Fitness Chelmsford

9Round Fitness Chelmsford comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners class is for. A few things worth knowing before your first week. First, you don't need to be fit or coordinated to start — you get in shape by training, not before it, and coaches scale every drill to you. Second, you won't be thrown into hard sparring — reputable gyms build the basics (stance, footwork, and punches and kicks on pads and bags) first, and any contact eases in gradually under a coach's control. Third, all fitness 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. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

Check beginner classes on their site

Your first kickboxing class at 9Round Fitness Chelmsford

Nervous about walking into a kickboxing 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 the basics — stance, footwork, and punches and kicks on pads or a heavy bag — not hard sparring. Go at your own pace and rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move and sweat in, and supportive trainers. What to bring: water, and hand wraps and gloves if you have them — many gyms lend loaner gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves and wraps (and shin guards once you start sparring). Sparring is optional and eases in gradually, once your basics 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.

Kickboxing is a contact sport. Warm up, pace yourself, 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 9Round Fitness Chelmsford

7 Summer St #5, Chelmsford, MA01824

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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.