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9Round Kickboxing Fitness

5 ★★★★★ 44 Google reviews · Kickboxing gym in Seabrook, New Hampshire

Part of 9Round

Kickboxing gym Cardio kickboxing 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.

Chain gym offering 30-minute, circuit-style boxing and kickboxing classes, plus trainer-guided workouts.

Plan your first class

  • 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
  • Website & schedule 9round.com — book classes and see the live schedule
  • Phone +1 603-760-2708

The classes they run

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

🔥 Cardio Kickboxing 5 mentions

“It is truly a great gym, a great workout and the owner/trainer of the Seabrook NH location named Kendra is simply the best!”

All gyms that run cardio kickboxing →

Other martial arts here

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

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 44 Google reviews — in their own words.

🎉 fun, high-energy classes 7 mentions

“We are members of the 9Round in Citrus Heights, CA, and were very excited to meet Kendra and her high energy, upbeat staff.”

💦 killer cardio workout 5 mentions

“This program only takes 30 minutes per visit, AND it feels pretty badass putting on those gloves and kicking and punching for 30 or so sweat drenched minutes.”

From the reviews

This is such a great workout. Good variety and balanced between strength, cardio, and core. Loved it and loved that I could walk in whenever I wanted to work out and could get right in with a trainer. Kendra and her trainers are great. I definitely recommend this workout.

★★★★★ — Adrienne, Aug 2019

This is the best full body workout in a short period of time. The workout is different every single day. It’s fun, challenging and before you know it you’ll be done, sweating and feeling completely invigorated. It’s the best 🥊🥊

★★★★★ — Julie, Mar 2022

We came to Seabrook, NH on vacation and still wanted to work out while away. We are members of the 9Round in Citrus Heights, CA, and were very excited to meet Kendra and her high energy, upbeat staff. From the moment we walked in, everyone was very friendly and welcoming.

★★★★★ — The, Aug 2018

I had a great experience at 9R. Kendra is an attentive and kind trainer. I would recommend trying this workout. I love it and find the bags very therapeutic both physically and emotionally :). Because let’s face it - It’s nice to kick something sometimes and get away with it!

★★★★★ — Angela, Jul 2019

Excerpts from public Google reviews. Read all 44 reviews →

Your first kickboxing class at 9Round Kickboxing Fitness

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 Kickboxing Fitness

570 Lafayette Rd Ste 803, Seabrook, NH03874

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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.