Jack Slack

At a glance

• Pen name of an anonymous British analyst who specializes in striking
• Author of Notorious: The Life and Fights of Conor McGregor (2017)
• More than 268 podcast episodes, about 116,000 YouTube subscribers

Overview

Jack Slack is the pen name of an anonymous British analyst who specializes in striking. He has written for Bloody Elbow, Bleacher Report, Vice's Fightland and Unibet. Since July 2020 he has published independently on his blog, FightPrimer.com, funded by his supporters on Patreon.

He wrote Notorious: The Life and Fights of Conor McGregor, published by John Blake Books in 2017. In 2014 he was nominated for MMA Journalist of the Year at the World MMA Awards.

What you'll find

His main format is the Jack Slack Podcast, formerly Fights Gone By, published as video on YouTube. Roughly every week he breaks down one or more recent fights: episode 268 came out in September 2026. His channel has about 116,000 subscribers.

He also covers fights outside the UFC. In September 2026 he devoted an episode to Salahdine Parnasse, titled “Who the Heck is Salahdine Parnasse?”, then broke down his win at MVP. He also posts short instructional videos like “How Jalin Turner Defends Against Low Kicks”, and articles on combat sports history on FightPrimer.com.

Why follow

Slack is a recognized striking analyst, as his 2014 World MMA Awards nomination shows. His breakdowns start from the footage and explain feints, angles, footwork and combinations in detail, with references to boxing and kickboxing.

He also brings historical perspective: he connects a current fight to fighters and styles from the past, which helps you understand where a technique comes from. His Parnasse episode shows he keeps an eye on European fighters too, so you hear about names before they become big in the United States. The podcast titles are playful, the content is technical, and the weekly rhythm means you get a fresh breakdown after most major events. If you prefer reading to watching, FightPrimer.com gives you the written version of his approach, with the same focus on technique and history. His McGregor book is still a useful long read on one of the sport's biggest stars.

MMA Official's take

This is for people who train and fans who want to understand striking in depth. Start with a recent Jack Slack Podcast episode on a fight you watched. Then try a short video like the one on Jalin Turner's low kick defense, and read Notorious if you want a full study of Conor McGregor.