Private Lessons & Coaches in Centreville, VA

Hello I’m Ronell or Coach EL, or Mr Rocklordfitness. I’ve been in the boxing community as a fighter and coach for over 40 years now. I am current USA boxing certified and approved. I am a strength and conditioning coach as well as technical boxing coach. If you want to know what it takes to be great in the sport of boxing or just want to learn skills for personal reasons , I’m your guy

Transforming Complex Concepts into Logic, Confidence, and Academic Success I am a passionate and results-driven Math Coach with over 15 years of experience empowering students to master mathematics, build unwavering confidence, and achieve measurable academic breakthroughs. Backed by an elite technical foundation—including an M.Tech in Computer Science from IIT and an M.Sc in Physics—I specialize in translating complex mathematical frameworks into digestible, step-by-step logic.

"Mr. Varadan supported me through many high school math courses, including Geometry, Pre-Calculus, Calculus, Statistics, and ACT preparation. His positive reassurance and optimistic attitude created a supportive and welcoming environment to learn and improve, and he always went above and beyond to make sure I was comfortable asking questions and fully understood the material in both breadth and depth. He is an excellent teacher who is knowledgeable, patient, and easy to get along with, and he always encouraged my curiosity to keep learning.

Tennis is not only won or lost on strokes. A lot happens between points. With 20+ years in mental performance and tennis coaching, I help players build confidence, focus, routines, emotional control, and resilience under pressure. My background includes work with JTCC, IMG Academy, NCAA athletes, Division I programs, military performance settings, and high-performance tennis environments.