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About The Athletic Collective

The Athletic Collective was founded with the aim to improve athletic development for every athlete. They provide a system that allows everyone to receive the same training, program structure and quality coaching that was previously only available in the world of professional sports.

The Athletic Collective has highly trained coaches who have gathered experience from all over the world, with experience in many professional sports including tennis, golf, rugby, powerlifting and motorsports. 

While these are their speciality sports, because the principles of training are universal, it is easy for their talented trainers to adapt and develop your performance in any sport.

If you want to develop your golf swing, stop getting injured in tennis or run your first 5km then the Athletic Collective is the best option for you in Singapore.

If you need a place to start, take action and come and visit The Athletic Collective.

Connect with The Athletic Collective via their website, Instagram, Facebook, or email


Robbie MacGregor

Robbie is a trainer with more than 10 years of experience in the fitness industry. An ex-rugby player with a Masters in Economics, he spent years working as a financial analyst before returning to his true passion of coaching and personal training.

He has a vast background in training, from working with professional athletes, child development, weight loss clients or just ‘normal’ people who want to feel happier and healthier. His goal is to help you smartly and sustainably. 

Training with Robbie, he encourages no fad diets, no crash weight loss and no unsustainable practices. Everything is driven at improving your quality of life for years to come - not just the next eight to twelve weeks. 

In 2019 Robbie ran several marathons and ultramarathons including the Marathon Des Sables, the hardest footrace in the world. Since then, he has helped several clients complete their first half and full marathons, triathlons and other exciting events. 

Reach out to Robbie if you would like to lose weight, improve your running, or make sustainable changes towards your health and future.


Aaron Tregaskes

Aaron (@aaronathletic) is a Strength and Conditioning Coach / Personal Trainer who has been actively involved in sports such as rugby, swimming and cricket from a young age. Wanting to pursue a career in the sports and fitness industry, he completed his degree in BSc in Strength and Conditioning (S&C) Science. This in turn led him to work as a S&C coach with rugby teams around London such as the London Scottish Academy, Rosslyn Park, Esher and professional rugby team Harlequins who play in the English premiership. Aaron also provided S&C support to various motor racing drivers, most notably in Formula 2, Formula E & Blanc Pain GT. 

Aaron specialises in performance-oriented goals, helping people return to exercise and sport through developing strength, cardiovascular, mobility and body composition qualities. His coaching philosophy is developed around balancing out and strengthening the body, this allows for proper body movement and minimises at-risk areas when undergoing the stress of activity. He believes in building strength from the ground up, working through all different ranges of motion, training at different velocities, carefully selected exercises and individualised training programs. Aaron understands that alongside these there are other pillars of health and fitness which are crucial when making long-lasting changes, this includes skill development, stress, nutrition and social support.

Outside of the gym, Aaron currently is currently Singapore Rugby Head of Strength & Conditioning for the 2022 season where they will be heading to the Asian Games in Guangzhou, China. Previously he was appointed as the Head S&C coach for the Women's side, taking them to the 2019 Olympic Qualifiers in China and The 2019 SEA Games in the Philippines. 

Aaron also specialises in youth development training where he has built two youth academies at his previous two jobs, he has also helped a number of young boys prepare for enlistment to National Service.

Qualifications & Achievements:
  • BSc Strength & Conditioning Science
  • NSCA Certified Strength & Conditioning Specialist
  • ITEC Level 3 Sports Massage Therapist
  • Real MVMT Mentorship


Jonathan Chua

Jonathan (@jonathantsg) is a coach and athlete with more than 8 years of experience in the area of powerlifting, strength and conditioning. Using his knowledge and skills as a powerlifting coach, Jonathan has worked with athletes all over the world earning multiple national and international championship titles.

Jonathan has previously worked at Temasek Polytechnic as a team manager for various sports teams and managed students' strength and conditioning programmes to ensure that they perform at the highest level while juggling their academics.

Combined with his powerlifting coaching experience, he was able to craft programs for his students to ensure that they are able to excel in their sport.

Jonathan coaches with tenacity and empathises with clients of different lifestyles and goals. He will work towards equipping clients with knowledge in understanding their bodies and making informed decisions on their lifestyles that better suit their daily activities.

In 2017, Jonathan won the Asian Powerlifting Championship and received the 2nd Overall Male Lifter title.


  • Bachelor of Science, Sports & Exercise Science
  • Powerlifting coaching level 1 -Australia powerlifting
  • Coaching Powerlifter - Personal Trainer Collective
  • Myofascial Compression Techniques - Trigger Point
  • Foam Rolling: Principles & Practice Level 1 - Trigger Point

What Customers Say


"I have been training with Aaron since Sep 2020.  Over the last 20 years, I have been running and weight training and have always been looking to improve performance and prevent injuries, which have impacted me a few times. Aaron has guided me to build a fitness routine which helps offset my lifestyle and allows me to train and recover efficiently. We have worked hard at building lost strength and power, whilst removing any imbalances in my body. I am also delighted that there are no new injuries.  Would highly recommend Aaron - he is patient and highly technical."

Ahmed Mazhari, President of Microsoft Asia
Running Strength & Conditioning Client