Six years after his last appearance on the podcast, Optimus Grime returns to discuss the state of jammer development in modern roller derby. Drawing on 12 years of international derby experience, Grime shares his 8-skill framework for jammer growth, breaks down the most common habits holding jammers back, and explains the coaching gaps that have emerged across the sport.

The conversation explores individualized jammer coaching, remote video analysis, mental performance, emotion management, and the pursuit of mastery over winning. Grime also shares practical advice on film study, off-skates training, cross-sport learning, and what athletes can do to continue improving at every level of play.

Whether you're a jammer, coach, or derby strategist, this episode is packed with insights from one of the sport's most dedicated students of the game.

Optimus Grime currently skates for @drdgroundcontrol and jammer coaches for Mile High Club @denverrollerderby. Optimus Grime will be coaching at RollerCon in July!

Photo by @rollerhasen1968

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