Practical & Scientific Strength & Conditioning For Fighters... Without Vomiting Your Lunch After Endless "Fight Specific" Circuits

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Conquer Your Fight Preparation

Learn how you can eliminate strength & conditioning mistakes destroying your fight performance... even if you aren't a trainer. The SSOF Underground gives you exclusive access to a collection of elite combat sports coaches and PhD researchers at your fingertips.

About Me.

Hi! James de Lacey here. I own and run Sweet Science of Fighting. Strength & Conditioning is my passion to the point I made it my career so I could help athletes like you succeed in their sport. I hold a Master of Sport & Exercise Science and have published academic research. Further, I've worked in three countries at the elite and international level of sport preparing athletes for competition. I train and compete in BJJ and created Sweet Science of Fighting to bring you cutting edge training information from myself and high-level coaches you can access with a click of a button.

Which Combat Sports Athlete Are You?

Represent Us When Training

Sweet Science of Fighting Rash Guard

The Sweet Science of Fighting Rash Guard is available in short and long sleeve. Premium fit and materials in collaboration with XMartial.

Sweet Science of Fighting BJJ Shorts

Insanely comfortable mid-thigh Sweet Science of Fighting BJJ and MMA shorts available in collaboration with XMartial.

November 21, 2022

Ask the average bro for strength training advice for BJJ and you’ll likely get “just

November 21, 2022

XMartial has burst onto the BJJ apparel scene with epic rash guard designs. There isn't

November 18, 2022

Endurance training for MMA is an often-misunderstood concept. Traditionally, fighters will hit the roads as

November 15, 2022

MMA gloves were invented to protect the hands and heads from punches while also allowing

November 15, 2022

Combat sports demand a lot from the body, and scrapes and bruises are an innate

November 15, 2022

Regardless of your chosen discipline, be it boxing, MMA, Muay Thai, or kickboxing, you will

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