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Our Owners

At Stronghold we prioritise a direct line of communication between the students, owners, and coaches. All of our owners are fellow martial artists and have been training together for many years. They can regularly be seen training together with our students in class. This helps the students have a direct line of communication between the owners and instructors. Our classes are taught by a husband and wife, and the kids and spouses of our team train in classes frequently.


Our Team

Helping Students Grow

Lukas Leasure

Founder and Head Coach 
www.lukasleasure.com for more info

  • Former International school teacher in Singapore

  • 14 years of Martial Arts Experience including: Brazilian Jiu Jitsu, Wrestling, and Muay Thai

  • Pro MMA since 2011.

  • BJJ Black Belt

Luke started his Martial Arts Journey 14 years ago in America and has been teaching in schools or martial arts academies in Asia for the last 7. He has a background in Amateur Wrestling, Brazilian Jiu Jitsu, Kickboxing, Muay Thai, MMA, and has extensive competition experience. Luke had fought professionally in MMA, competed in amateur wrestling, BJJ competitions, and has worked as a judge and referee for professional bouts. Luke has coaching experience ranging from local kids competitions all the way up to coaching professional fighters in ONE Championship. 

Luke has spent many years training, studying, and travelling all while teaching martial arts and in secondary schools.  He was a teacher at the Chinese and Korean international schools for three years before transitioning to a full-time martial arts instructor. He has since taught martial arts in Singapore and Kuala Lumpur and has combined his experience as a martial artist and educator to craft a training program that sets students up for success by instilling solid fundamentals, an emphasis on technique, and setting a positive environment for everyone to grow in.

Charmaine Lim Leasure

Founder, Manager, Kids Instructor, Assistant Instructor

  • Brazilian Jiu Jitsu Purple Belt

  • Experienced Kids BJJ and MMA coach

  • Gym manager

  • Experienced competitor

Charmaine is Luke's wife, the gym manager, and the director and coach of our kids program. She is our top female trainer at Stronghold and has been running classes for more than 3 years and has taught in both Singapore and Kuala Lumpur, Malaysia. Charmaine is also the Head of our Women's Only BJJ program. 

She is an active competitor in Brazilian Jiu-Jitsu and has won Gold as a Blue Belt at the Copa De Borneo as well as the ADCC Singapore trials - where she attained a Gold Medal in her division and a Silver Medal in the Open Weight Category. She recently got silver in the purple belt division at the SGBJJO tournament. 

Shaun Ng

Assistant Instructor, Owner

Shaun is a Lawyer, long time martial artist and founder of Stronghold MMA. He is a brown belt is Brazilian Jiu Jitsu and an assistant coach.

Ron Ng

instructor (Muay Thai & MMA)

  • Undefeated in Amateur Muay Thai and MMA

  • Inaugural SFC Lightweight Champion (MMA)

  • BJJ Purple Belt

Ron is a lifelong martial artist and has trained in many disciplines over the year including boxing, muay thai, bjj, MMA, and some other traditional martial arts. Ron currently teaches Muay Thai on Saturday morning and Monday night.  

Timothy Loh

Judo instructor (Kids & Adults)

International Judo Federation 1st Dan
Part of the Judo National team from 2012-2017
SEA Games Bronze medalist 2013 , 2015 for judo -100kg

Part of the Sambo National Team 2018-present
Sea Games Bronze medalist for Combat Sambo +97kg

BJJ Purple Belt

Been coaching for many years with team Jagsport specialising in judo for kids and teens


+65 8569 1098

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