25 Dalrymple Rd Suites 103 & 104, Sunderland, MD
Calvert MMA Academy / Lineage BJJ in Sunderland is built around Professor Jim Thrift, a fifth-degree Brazilian Jiu Jitsu black belt under Grandmaster Relson Gracie. Thrift is also a Navy veteran and retired law-enforcement professional, and his academy traces its BJJ roots to the early 1990s. That combination makes the school’s self-defense focus more than a marketing phrase. Coach Jack Sudduth handles much of the day-to-day instruction under Thrift and Professor Kevin Southworth. Students can train gi jiu jitsu, fundamentals, kids classes, wrestling, judo, MMA, Muay Thai, boxing and open mat. Team Lineage also reports 2025 Good Fight Submission-Only World Championship team wins across youth and adult divisions. For martial artists in Sunderland and the surrounding southern Maryland area, this academy makes particular sense when Gracie lineage and practical combat-sports experience matter together. Thrift’s senior rank, military and law-enforcement background and the team’s current competition results give the location a clear identity.
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