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9Round Fitness

4.9 ★★★★★ 89 Google reviews · Kickboxing gym in Duluth, Minnesota

Part of 9Round

Kickboxing gym Free trial Beginners welcome 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.

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
  • Today see hours ·
  • Website & schedule 9round.com — book classes and see the live schedule
  • Phone +1 218-481-7788

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, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🔥 Cardio Kickboxing 4 mentions

“Not only is it a great workout and fun, but the atmosphere and the trainers are so welcoming, approachable, and kind.”

All gyms that run cardio kickboxing →

🌱 Beginners 3 mentions

“I've been to several gyms, and this was the first time working out had a different feel.”

All gyms that run beginners →

Teens Kickboxing

“It is honestly the most consistent I have been about going to a gym since high school.”

All gyms that run teens kickboxing →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at 9Round 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 89 Google reviews — in their own words.

🌱 welcoming to beginners 7 mentions

“Not only is it a great workout and fun, but the atmosphere and the trainers are so welcoming, approachable, and kind.”

🎉 fun, high-energy classes 3 mentions

“Not only is it a great workout and fun, but the atmosphere and the trainers are so welcoming, approachable, and kind.”

💦 killer cardio workout 2 mentions

“Not only is it a great workout and fun, but the atmosphere and the trainers are so welcoming, approachable, and kind.”

🧠 builds confidence & relieves stress 3 mentions

“This was my first experience with kickboxing, and I felt welcomed and empowered from day one!”

🤝 friendly, family gym 6 mentions

“Staff are responsive, knowledgeable and friendly, pushing me to get the most out of my workouts and understanding when I need modifications as well.”

From the reviews

I joined a 30 day challenge moms group & it was the BEST choice I could of made. The coaches have helped, pushed & encouraged me to keep going. The 3 min. workout per station goes very quickly all while giving me a full boy workout. I'm 49 yrs old and have loss inches, gained muscle and confidence.

★★★★★ — Penny, Aug 2021

The personal relationships formed with the staff and other 9 Round members make this place great. I love that I can come in at any time, and stay for however long I want if I want to do more rounds or other activities.

★★★★★ — Amber, Apr 2018

They have a great workout circuit. It is as intense as you want to make it, and you have a trainer there helping the whole way. I've been to several gyms, and this was the first time working out had a different feel. It was more fun and engaging...

★★★★★ — Ryan, Mar 2020

9Round has changed my attitude towards gyms! At a traditional gym I felt anxiety of whether others were “judging” me, whether or not I was using equipment properly, and had a hard time motivating myself to go. 9Round has never made me feel that way.

★★★★★ — Rayanna, Apr 2025

Excerpts from public Google reviews. Read all 89 reviews →

New to kickboxing? Start at 9Round Fitness

9Round Fitness 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

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

1334 W Arrowhead Rd, Duluth, MN55811

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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.