Joel LeVan

Strategy, tactics, and specialized skills. Combining over two decades of Design Thinking as a multidisciplinary design professional, 27 years of combatives experience – including tactical and personal protection training– knowledge of specialized environments, as well as a passion for athletics and the outdoors, the Radius Factor™ vision came to light.

Radius Factor™ is a network, a mindset, a standard practice using proven methods to keep you life protected – No matter where you are or what may arise.


Training EXperience

My training experience ranges from the following:

  • American Kenpo (4th Degree Black / 20+ yrs)
  • Muay Thai & Kickboxing (17+ yrs)
  • Pekiti-Tirsia Kali: Certified Professional Instructor and Guro (via PTK-SMF) / 10+ yrs...
  • Certified SMF Military PTK-CQC instructor (via PTK-SMF)
  • Certified SMF Law Enforcement DTS Instructor (via PTK-SMF)
  • Certified Integrated Conceal Carry Weapons instructor (ICCW L1 & L2 Adv. via PTK-SMF)
  • Ground Combatives – Brazilian Jiu-jitsu, Filipino Dumog, Kenpo
  • Firearms – Tactical Handgun & Carbine; Home Defense/Environmental Tactics

Over the years, I've been very fortunate to have trained with many renowned instructors including Kenpo greats Dennis Nackord and Frank Trejo; all-round fighting legend Joe Lewis; Pekiti-Tirsia Kali grandmaster Grand Tuhon Leo Gaje Jr. of the Philippines; and Tuhon Tim Waid of PTK-SMF/PTKGO, a former Marine and world renowned military and law enforcement tactical instructor. My current martial/tactical studies primarily focus on Pekiti-Tirsia (PTK-SMF) under Tim Waid, as part of the Certified Professional Instructor (CPI) program and instructor cadre, in addition to firearms training methods and tactics.

Design & Strategy

As a Design Strategist with experience in various professional industries and disciplines, Radius Factor™ utilizes design thinking as a universal way to define and solve contextual problems relevant to user, environmental, and logistical factors that apply to processes, products, services, and interactions in everyday situations.

"SENTE" – to Take and Hold the initiative

A true professional should be innovative and continually train to hold the advantage both physically and mentally. We call this process, Sente™ Training. The word "Sente" (pronounced 'sen-tay) is borrowed from the game called Go. It was derived from Chinese war generals who used pieces of stone to map out strategic defensive and offensive positions more than 2500 years ago.

"Sente" describes the person who has the initiative in a situation. It refers to the moves resulting in gaining favorable control of a situation or "holding the advantage".

This philosophy translates to combat, business, and life itself. Having "sente", as it translates to strategy and combat, especially describes the core philosophy behind Radius Factor™.

My core belief of personal protection and combatives training is that a flexible and realistic training method of multi-purpose maneuvers and tactics should exist to create simplistic, well-rounded skill sets using an effective instructional platform – useful skills that can be developed immediately and progressively. A practitioner should acquire knowledge and competencies in a range of applications and environments without being bogged down by outdated practices or dogma. Most importantly, the process should have a method for validation. This is also a common philosophy and process in professional design and innovation fields.

An expanded vision

Formerly Sente™ Martial Systems, we are now Radius Factor™. We hold the same core philosophy with an expanded vision, network, products and services. However, we still retain the Sente™ Training philosophy at our core: Take and hold the initiative.