# CheckMat Lake County > Mundelein, United States ## Overview **Name:** CheckMat Lake County **Description:** Since 2014, Lake County Brazilian Jiu-Jitsu (LCBJJ) has been the premier destination for martial arts training in the GLMV area (Green Oaks, Libertyville, Mundelein, and Vernon Hills). Founded and led by Master Carlos Archila, a Second Degree Black Belt under Leo Vieira, the gym is committed to providing top-tier Brazilian Jiu-Jitsu and Muay Thai instruction for both kids and adults. Carlos brings a wealth of experience to his teaching, having begun his Jiu-Jitsu journey in 2005 and discovering his passion for instruction early on as a blue belt. As an Army Reserve veteran and holder of a BA in Sociology from Northern Illinois University, he understands the pivotal role a positive environment plays in shaping character. Lake County BJJ offers specialized programs tailored to different age groups and skill levels. For children, the gym provides age-appropriate classes for kids 5-7 and 8-12, starting with a Basic program that builds strong foundations in BJJ and essential character values before progressing to a Leadership program where students develop higher-level skills, leadership qualities, and competition experience. For adults, the gym offers both Gi and No-Gi classes ranging from beginner-friendly fundamentals to advanced sessions for experienced practitioners. Morning and evening classes are available six days a week to accommodate all schedules, ensuring steady progress whether students are looking to get in shape, learn self-defense, or compete. The instructional team includes Patty Archila, a Black Belt under Carlos Archila who serves as Operations Manager and Assistant Instructor with a strong focus on Women's Jiu-Jitsu, and Nefeli Papadakis, an accomplished 2021 Tokyo Olympics Judo competitor for Team USA and three-time Senior National Champion who brings elite-level experience to coaching the next generation. At Lake County BJJ, students of all ages build confidence, develop resilience, and achieve their goals in a supportive, family-friendly environment built on discipline, respect, and perseverance. **Status:** Active ## Contact Information **Address:** 108 Terrace Dr. Mundelein, NC 60060, United States **Phone:** (847) 495-2557 **Website:** https://www.lakecountybjj.com **Social Media:** - Instagram: http://instagram.com/lakecountybjj - Facebook: http://facebook.com/lakecountybjj - YouTube: https://www.youtube.com/@lakecountybjj ## Hours of Operation - Monday: 9:00 AM - 9:00 PM - Tuesday: 9:00 AM - 9:00 PM - Wednesday: 9:00 AM - 9:00 PM - Thursday: 9:00 AM - 9:00 PM - Friday: 9:00 AM - 9:00 PM - Saturday: 9:00 AM - 4:00 PM - Sunday: Closed ## Pricing ## Instructors ### Carlos Archila - Black **Role:** Head Instructor **Bio:** Second Degree Black Belt under Leo Vieira with over 20 years of BJJ experience. Army Reserve veteran and founder of Lake County Brazilian Jiu-Jitsu in 2013. Holds a BA in Sociology from Northern Illinois University. Passionate about teaching with a focus on detail, repetition, and connecting movements to create deeper understanding. ### Nefeli Papadakis **Role:** Instructor **Bio:** 2021 Tokyo Olympics competitor for Team USA Judo. Three-time Senior National Champion and three-time Pan American Championships medalist. Began training in Judo at age 4 and Brazilian Jiu-Jitsu at age 9. Now focuses on coaching the next generation at Lake County Brazilian Jiu-Jitsu. ### Patty Archila - Black **Role:** Instructor **Bio:** Black Belt under Carlos Archila with training since 2011. Passionate advocate for Women's Jiu-Jitsu who actively participates in and hosts Women's Open Mats across Lake County, Chicagoland, Indiana, and Wisconsin. Serves as Operations Manager and Assistant Instructor at Lake County BJJ. ## Programs ### Kids Basic (Ages 5-7) **Skill Level:** Beginner **Age Group:** kids **Gi Requirement:** Gi required **Description:** Age-appropriate BJJ program for young children ages 5-7, building strong foundations in basic techniques and essential character values like respect, discipline, and self-control. ### Kids Basic (Ages 8-12) **Skill Level:** Beginner **Age Group:** kids **Gi Requirement:** Gi required **Description:** BJJ program for children ages 8-12, focusing on fundamental techniques and building character. Students progress to the Leadership program as they advance. ### Kids Leadership **Skill Level:** Intermediate **Age Group:** kids **Gi Requirement:** Gi required **Description:** Advanced program for kids who have progressed through the Basic program. Develops higher-level BJJ skills, leadership qualities, and competition experience. Leadership students serve as role models and mentors. ### Adult Fundamentals (Gi) **Skill Level:** Beginner **Age Group:** adults **Gi Requirement:** Gi required **Description:** Beginner-friendly Brazilian Jiu-Jitsu program for adults focusing on core techniques and fundamentals. Perfect for those new to BJJ or looking to build a strong foundation. ### Adult Advanced (Gi) **Skill Level:** Advanced **Age Group:** adults **Gi Requirement:** Gi required **Description:** Advanced Brazilian Jiu-Jitsu training for experienced practitioners looking to refine techniques and prepare for competition. ### Adult No-Gi **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** No-Gi **Description:** No-Gi grappling program for adults, similar to MMA-style training. Focuses on wrestling, takedowns, and submission grappling without the gi. ### Muay Thai **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** No-Gi **Description:** Traditional Muay Thai striking program for adults, focusing on punches, kicks, knees, and elbows. Excellent for fitness, self-defense, and competition. --- **Last Updated:** March 01, 2026 **Data Source:** BJJ.Space (https://bjj.space/gyms/united-states/north-carolina/mundelein/checkmat-lake-county)