# Checkmat - Science Of Jiu-Jitsu > Harvey, United States ## Overview **Name:** Checkmat - Science Of Jiu-Jitsu **Description:** Science of Jiu Jitsu Academy is a Checkmat affiliate in Harvey, Louisiana, co-owned by black belts Marcus Dempsey and Zach Cothren. The academy offers comprehensive Brazilian Jiu-Jitsu training for all ages and skill levels, from fundamentals to advanced competition preparation. The academy's curriculum is built on systematic progression, starting with the 101 Fundamentals program that introduces students to the foundational skills of BJJ. Students learn the 4 Step Fighting Methodology, hierarchy of positions, and how to apply efficiency, leverage, balance, and timing. The program covers both gi and no-gi training, ensuring well-rounded grappling development. Head instructor Marcus Dempsey is a US Army Veteran with over 20 years of martial arts experience across multiple disciplines including BJJ, Taekwondo, Boxing, and Muay Thai. His competition achievements include IBJJF Open Black Belt Gold medals, ADCC Open medalist, Golden Gloves Welterweight Boxing Champion, and multiple Fight2Win black belt appearances. Co-owner Zach Cothren is an IBJJF No-Gi Worlds Black Belt Middleweight Gold Medalist with extensive competition experience and an undefeated amateur boxing record. Both instructors bring decades of combined teaching experience and a passion for developing students at all levels. **Status:** Active ## Contact Information **Address:** 1821 Commercial Dr Suites WXYZ, Harvey, LA 70058 Harvey, IN 70058, United States **Phone:** 504.354.9837 **Website:** https://Scienceofjiujitsu.net **Social Media:** - Instagram: https://www.instagram.com/science_of_jiujitsu_academy - Facebook: https://www.facebook.com/share/jaxqrD6Q2r4SNYsk ## Hours of Operation - Monday: 9:30 AM - 8:00 PM - Tuesday: 9:30 AM - 8:00 PM - Wednesday: 9:30 AM - 8:00 PM - Thursday: 9:30 AM - 8:00 PM - Friday: 9:30 AM - 8:00 PM - Saturday: 11:00 AM - 1:00 PM - Sunday: Closed ## Pricing ## Instructors ### Marcus Dempsey - Black **Role:** Head Instructor **Bio:** US Army Veteran with over 20 years of martial arts experience. Trained in BJJ, Taekwondo, Boxing, Muay Thai, MMA, Modern Army Combatives, and multiple weapon systems. Has taught thousands of students including law enforcement academies, ROTC programs, and military units at Bagram Air Force Base, Afghanistan. ### Zach Cothren - Black **Role:** Instructor **Bio:** Over 20 years of martial arts experience with deep family roots in the martial arts. Passionate about helping students evolve and push themselves to new levels. Brings extensive competitive experience across the country with a proven track record at the highest levels of competition. ## Programs ### 101 Fundamentals **Skill Level:** Beginner **Age Group:** adults **Gi Requirement:** Gi required **Description:** Foundational BJJ curriculum introducing students to core techniques, positions, and the 4 Step Fighting Methodology. Takes students from novice to street ready through systematic skill development. **Classes:** ### 201 Intermediate **Skill Level:** Intermediate **Age Group:** adults **Gi Requirement:** Gi required **Description:** Intermediate level training building upon fundamental skills with advanced techniques and concepts **Classes:** ### Youth BJJ **Skill Level:** All Levels **Age Group:** kids **Gi Requirement:** Gi required **Description:** Brazilian Jiu-Jitsu program designed for children, focusing on fitness, self-defense, discipline, and focus **Classes:** ### No-Gi **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** No-Gi **Description:** Grappling training without the gi, similar to MMA-style training **Classes:** --- **Last Updated:** March 01, 2026 **Data Source:** BJJ.Space (https://bjj.space/gyms/united-states/indiana/harvey/checkmat-science-of-jiu-jitsu)