our coaches
Mike McDonald
3rd-Degree Black Belt / Head Coach
Bringing over twenty years of grappling expertise and competitive tenacity, Mike leads the mats at Checkmat Leigh on Sea BJJ. He was awarded his prestigious BJJ black belt by Professors Marc Walder and Spencer Hewitt.
As an active competitor in the masters divisions, Mike translates battle-proven insights from the competition circuit directly to his classes. His teaching methodology blends traditional foundations with contemporary positional strategies, empowering every practitioner to build a versatile and effective game.
In addition to BJJ, Mike is a dedicated Judoka who advocates for a rigorous approach to strength and conditioning, prioritising functional movement for combat sports. A vital member of the renowned Checkmat Essex team, his instruction emphasises technical precision, body mechanics, and fostering mental resilience for both hobbyists and serious competitors alike.
Blue belt/assistant coach
Zac McDonald
Zac has grown up on the mats and brings a modern, dynamic style to his coaching. A highly successful competitor across both the regional and European BJJ scenes, he consistently places gold and has earned standout results in the Teen and Juvenile divisions.
He holds IBJJF European and British medals, the All Stars Absolute Belt, Polaris Pro Grappling Gold, and an EJO Gold Medal. Beyond jiu‑jitsu, Zac is also a successful judoka, winning gold at NHC (Brentwood) competition — adding another layer of grappling depth to his game.
Zac’s fast‑evolving style, competition experience, and lifelong connection to martial arts make him a valuable part of the coaching team and an inspiring presence for younger athletes coming through the ranks.
SESSION SCHEDUlE
Tuesdays:
Kids (Ages 6+) 18:30–19:30
Adult Gi 19:30–21:00
Extra sessions coming!
Location:
St Aidens Hall,
78 Moor Park Gardens, Leigh-on-Sea, SS9 4PY
Leigh on Sea Brazilian Jiu Jitsu