06/12/2026
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We are a Mixed Martial Arts and Fitness Facility focused on Kickboxing, Brazilian Jiu-Jitsu, and Fitness for kids and adults. www.relentlessmma.ca
We offer classes for all ages and skill levels. Whether your goal is to become a competitor or just to become more active, lose weight, or get stronger, this is the gym for you! Our Dedicated coaches will do everything they can to help you achieve your goal. Our Facility has 3500 Square Feet of Mat Space, a 20 x 20 Competition size Boxing Ring, Weight room, showers and more! Join our Relentless Family today, you wonβt regret it.
06/12/2026
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06/07/2026
Nick Hoggan brought home a big win in Buffalo last night! He landed multiple head kicks, opening up a massive cut and ending the fight in just 51 seconds. Nick has worked extremely hard for this, dedicated the last 8 weeks towards one goal. The improvement was incredible to watch. We are extremely proud of Nick for his performance and representing Relentless. Looking forward to the next one. Thanks to for another great event. Let's GOOO π₯π₯
06/06/2026
Nick Hoggan is ready to put on a show tomorrow night at in Buffalo. He's put in an incredible amount of hard work and is ready to show it off. Catch the PPV at k4fighting.tv tomorrow night at 6pm. Nick is fight #5. Let's GOOO π₯π₯
06/05/2026
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Our Kids Kickboxers are locked in and improving daily. Proud.
05/30/2026
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Today wasn't just about earning new ranksβit was about celebrating commitment, courage, and progress.
Watching these young athletes grow stronger, more confident, and more disciplined every week is what it's all about.
Congratulations to everyone who graded today. Your hard work paid off! ππ₯
05/30/2026
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Get stronger. Build confidence. Learn practical skills.
Join a community that's helping people of all ages and experience levels become their best.
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Beginner Friendly
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All Levels Welcome
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Kids & Adult Programs
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Kickboxing, Boxing, BJJ & Fitness
π₯ 3 MONTHS FOR JUST $299 π₯
π Relentless MMA & Fitness
105 Merritt St., St. Catharines
Message us today to reserve your spot and start your summer strong.
05/29/2026
Nick Hoggan steps into the cage next Saturday in Buffalo! He has been working extremely hard and is ready to represent Relentless. Tickets are still available, this is just 40 minutes away. Let's GOOO!π₯π₯
05/23/2026
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Stronger. Fitter. More confident.
If you've been waiting for the "right time" to get started, this is it. Our Strength & Conditioning program is designed to help you build muscle, improve fitness, and feel your best this summer.
π₯ MondayβThursday at 6PM
π₯ Saturday at 9AM
π₯ 3 Months for just $299
Don't just talk about getting in shapeβmake it happen.
π Relentless MMA & Fitness
105 Merritt St., St. Catharines
DM to get started. Limited spots available.
05/22/2026
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As our 10 Year Anniversary approaches, we asked members to come up with shirt ideas to help us celebrate. This shirt was voted number one. We had some great submissions and appreciate everyone who spent time on them. We have a pre-order on until May 30th. Don't miss out, this will be a limited run. Thank you for the continued support .π
05/13/2026
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Confidence. Discipline. Fitness.
Our Teen Kickboxing program helps athletes ages 13β17 build real skills in a positive, high-energy environment.
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Learn striking fundamentals
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Improve fitness & coordination
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Build confidence and mental toughness
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Train with experienced coaches
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Great for beginners and experienced athletes
π Relentless MMA & Fitness
105 Merritt St., St. Catharines
π Tuesday & Thursday β 6PM
π Saturday β 11AM
Limited spots available. Message us today to book a free trial class or get started.
| Monday | 4pm - 9:30pm |
| Tuesday | 3:30pm - 9:30pm |
| Wednesday | 4:30pm - 12pm |
| Thursday | 8am - 9pm |
| Friday | 4:30pm - 8pm |
| Saturday | 9am - 2:30pm |