Lena Tan

Lena has been competing Muay Thai in Singapore, Australia and Thailand on a professional level since 2006. She represented Singapore for 4 years in the Muay Thai World Championships and lead the team for 2 years as the Team Captain.

Besides from her full time day job as a marketer and training for her fights, Lena helps to teach Muay Thai at the PIT.

Achievements & Credentials

Growing up in a family of martial artists, the love of combat sports was infused in me since young. So when I decided to pick up a combat sport, I wanted to choose a martial art that will be useful to me in the event I have to use it for self-defense, which is one of the reasons why I chose to learn Muay Thai.

Personally, I feel Muay Thai is a practical skill because the techniques being taught can be applied to real life self defense. Most importantly, not only do you learn a skill, you get to keep fit while doing it.


  • Certified Muay Thai Instructor under World Muay Thai Council (2014)
  • Represented Singapore IFMA Amateur Muay Thai World Championship (2010,2012,2013,2014)
  • Captain of Team Singapore Muay Thai (2013-2014)
  • Represented Singapore in Asian Beach Games (2014)
  • Cross Border Female 54Kg Title Belt Holder (2011)
  • Singapore Female 54kg Title Belt Holder (2010)

Feng Yi Chew

Feng is one of our PITbull athletes and is ranked as an elite Powerlifter by the Global Powerlifting Alliance. In 2015, she set 4 world records at the Arnold Classics in Australia and on top of that was awarded a pro card in bodybuilding.

However, her approach to fitness spans far beyond just powerlifting.

Feng also competes in dragon boat, Crossfit, bodybuilding, physique, running, canoeing and strongman, amongst many other sports.

Feng helps teach at the PIT when she is free from her busy schedule defending the nation as a soldier in the army.

Achievements & Credentials

I fervently believe that overall athleticism is important and continue to work towards being able to lift heavy, run fast, and look good in the process — all simultaneously.

Fitness is an overarching passion and interest of mine, and I go to great lengths to ensure that I am able to devote the necessary time to respective areas of my life. Fitness has also proven to be a very useful tool that I can draw upon when it comes to motivating the men that I lead in the army and for inspiring my peers around me.


  • CrossFit Level 1 Trainer (2008, 2012)
  • CrossFit Gymnastics Certified Trainer (2008)
  • Russian Kettlebell Club (RKC) Coach (2009)
  • American Kettlebell Club (AKC) Coach (2009)
  • USA Weightlifting (USAW) Sports Performance Coach (2009)
  • CPR-AED Certified (2014)
  • Trainer at CrossFit Joust in Ann Arbor, Michigan, USA (2008-2009)

Bronson Chan

Bronson is a movement enthusiast with constant curiosity in the endless possibilities of movement. A little interesting fact about Bronson – He suffered multiple spinal fractures from a cycling road accident in 2011. After challenging rehabilitation and recovery, he began exploring movements from various disciplines to regain his mobility and range of motion.  Since then Bronson has been constantly attending movement workshops and certifications around the world so that he can bring the best to his students.

Since then, Bronson has been constantly attending movement workshops and certifications around the world so that he can bring the best to his students.

Achievements & Credentials

  • Animal Flow Level 1, Level 2 , Advanced Flow design certified instructor
  • Ginastica Natural Level 1, Level 2 , Level 3 certified instructor
  • Stick Mobility Level 1 certified instructor
  • Steel Mace Flow level 1 certified instructor

Harold Ko

Harold started training boxing in 2008, and decided to focus on BJJ after suffering from a detached retina. Always looking to push his own boundaries and stay out of his comfort zone, Harold has competed up to 2 weight classes higher than his normal weight and has won 2 golds across 2 different weight classes.

Although he is always eager to win, he is even more eager to put on a show when he competes and always pushes the pace during his matches, trying his best not to have a dull moment in between.

Harold currently represents ATOS Jiu Jitsu under Rodrigo Caporal, and is proudly sponsored by Klipsch and Iron Lion Soap.

Achievements & Credentials

I have been coaching martial arts for the past 6 years, as well as actively competing on the national and international circuit. I always had an interest in martial arts, and have been chasing the dream whenever I can. My approach to training has always been about the little details, as this is often the difference between success and failure – Practice doesn’t make perfect, perfect practice makes perfect. I’ve coached many people, and that feeling you get from watching your own students succeed and make personal breakthroughs is indescribable. There is nothing else that I would rather do.


  • Awarded brown belt by Rodrigo Caporal (ATOS)
  • Certified Personal Trainer by International Sports Science Association
  • Awarded Purple belt by Rodrigo Caporal (ATOS)
  •  Awarded Blue Belt by Rodrigo Praxedes (Robson Moura Nova Uniao)