Relentless MMA & Fitness

Relentless MMA & Fitness 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 won’t regret it.

π™‹π™§π™šπ™₯π™–π™§π™š π™žπ™£ π™¨π™žπ™‘π™šπ™£π™˜π™š. π™€π™­π™šπ™˜π™ͺπ™©π™š π™ͺπ™£π™™π™šπ™§ π™₯π™§π™šπ™¨π™¨π™ͺπ™§π™š.
06/12/2026

π™‹π™§π™šπ™₯π™–π™§π™š π™žπ™£ π™¨π™žπ™‘π™šπ™£π™˜π™š. π™€π™­π™šπ™˜π™ͺπ™©π™š π™ͺπ™£π™™π™šπ™§ π™₯π™§π™šπ™¨π™¨π™ͺπ™§π™š.

Nick Hoggan brought home a big win in Buffalo last night! He landed multiple head kicks, opening up a massive cut and en...
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 πŸ”₯πŸ”₯

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 i...
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 πŸ”₯πŸ”₯

π™‡π™Šπ˜Ύπ™†π™€π˜Ώ 𝙄𝙉 🎯Our Kids Kickboxers are locked in and improving daily. Proud.
06/05/2026

π™‡π™Šπ˜Ύπ™†π™€π˜Ώ 𝙄𝙉 🎯

Our Kids Kickboxers are locked in and improving daily. Proud.

π™‚π™π˜Όπ˜Ώπ™„π™‰π™‚ π˜Ώπ˜Όπ™”Today wasn't just about earning new ranksβ€”it was about celebrating commitment, courage, and progress.Watching...
05/30/2026

π™‚π™π˜Όπ˜Ώπ™„π™‰π™‚ π˜Ώπ˜Όπ™”

Today wasn't just about earning new ranksβ€”it 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! πŸ‘πŸ₯Š

πŸ”₯ π™Žπ™π™ˆπ™ˆπ™€π™ π™Žπ™‹π™€π˜Ύπ™„π˜Όπ™‡ πŸ”₯Get stronger. Build confidence. Learn practical skills.Join a community that's helping people of all a...
05/30/2026

πŸ”₯ π™Žπ™π™ˆπ™ˆπ™€π™ π™Žπ™‹π™€π˜Ύπ™„π˜Όπ™‡ πŸ”₯

Get stronger. Build confidence. Learn practical skills.

Join a community that's helping people of all ages and experience levels become their best.

βœ… Beginner Friendly
βœ… All Levels Welcome
βœ… Kids & Adult Programs
βœ… Kickboxing, Boxing, BJJ & Fitness

πŸ”₯ 3 MONTHS FOR JUST $299 πŸ”₯

πŸ“ Relentless MMA & Fitness
105 Merritt St., St. Catharines

Message us today to reserve your spot and start your summer strong.

Nick Hoggan steps into the cage next Saturday in Buffalo! He has been working extremely hard and is ready to represent R...
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!πŸ”₯πŸ”₯

β˜€οΈ π™Žπ™π™ˆπ™ˆπ™€π™ π™Žπ™π˜Όπ™π™π™Ž π™‰π™Šπ™’ β˜€οΈStronger. Fitter. More confident.If you've been waiting for the "right time" to get started, this...
05/23/2026

β˜€οΈ π™Žπ™π™ˆπ™ˆπ™€π™ π™Žπ™π˜Όπ™π™π™Ž π™‰π™Šπ™’ β˜€οΈ

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.

πŸ”₯ Monday–Thursday at 6PM
πŸ”₯ Saturday at 9AM
πŸ”₯ 3 Months for just $299

Don't just talk about getting in shapeβ€”make it happen.

πŸ“ Relentless MMA & Fitness
105 Merritt St., St. Catharines

DM to get started. Limited spots available.

𝗣π—₯π—˜-𝗒π—₯π——π—˜π—₯: 𝟭𝟬 π—¬π—˜π—”π—₯ π—¦π—›π—œπ—₯𝗧As our 10 Year Anniversary approaches, we asked members to come up with shirt ideas to help us c...
05/22/2026

𝗣π—₯π—˜-𝗒π—₯π——π—˜π—₯: 𝟭𝟬 π—¬π—˜π—”π—₯ π—¦π—›π—œπ—₯𝗧

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 .πŸ™

πŸ₯Šπ™π™€π™€π™‰ π™†π™„π˜Ύπ™†π˜½π™Šπ™“π™„π™‰π™‚πŸ₯ŠConfidence. Discipline. Fitness.Our Teen Kickboxing program helps athletes ages 13–17 build real skills...
05/13/2026

πŸ₯Šπ™π™€π™€π™‰ π™†π™„π˜Ύπ™†π˜½π™Šπ™“π™„π™‰π™‚πŸ₯Š

Confidence. Discipline. Fitness.
Our Teen Kickboxing program helps athletes ages 13–17 build real skills in a positive, high-energy environment.

βœ… Learn striking fundamentals
βœ… Improve fitness & coordination
βœ… Build confidence and mental toughness
βœ… Train with experienced coaches
βœ… Great for beginners and experienced athletes

πŸ“ Relentless MMA & Fitness
105 Merritt St., St. Catharines

πŸ—“ Tuesday & Thursday β€” 6PM
πŸ—“ Saturday β€” 11AM

Limited spots available. Message us today to book a free trial class or get started.

Address

105 Merritt Street
Saint Catharines, ON
L2T1J7

Opening Hours

Monday 4pm - 9:30pm
Tuesday 3:30pm - 9:30pm
Wednesday 4:30pm - 12pm
Thursday 8am - 9pm
Friday 4:30pm - 8pm
Saturday 9am - 2:30pm

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