Jiu Jitsu Fieldnotes

John Collins is a two-time Olympian rower who competed at Rio 2016 and Tokyo 2020. In this episode, he sits down with Callum at Roger Gracie Academy Marlow to talk about elite sport, identity, transition, and why he walked off the water after his last race and made a lunchtime jiu jitsu class the same morning. What we cover: John's path into rowing started at 15 with the Duke of Edinburgh award —...

A village hall in Sheffield. Blue belts running the room. A law student who wasn’t sure where he fit. Fast forward twenty years and Ongy has lived a full arc: corporate sales burnout, a switch to no-gi sparked by aching fingers and EBI highlights, and a leg lock class that helped transform how our gym trains. What emerges isn’t a hype story about submissions—it’s a blueprint for learning, coaching...

Callum and Cat roll into the world of Brazilian Jiu-Jitsu – where sweaty grappling meets surgical precision. They dig into the physical realities of BJJ, how often you should be training (and how often you actually do), and the particular challenges women face on the mats. Cat talks through her journey from traditional Japanese Jiu-Jitsu into BJJ, sharing how it’s helped her navigate personal hurd...

Stories from the Mats at Roger Gracie Academy Marlow. Introduction: In the world of martial arts, Brazilian Jiu-Jitsu (BJJ) stands out not only for its self-defense techniques but also for the community it fosters. In a recent podcast episode, host, Callum Medcraft and his friend Vin delve into their shared experiences and insights about starting Jiu-Jitsu later in life, the importance of camarade...