r/crossfit • u/Pretend_Edge_8452 • 1h ago
I wrote a book about the rise and fall of CrossFit. AMA.

Hello friends at r/crossfit! I am Calum Marsh, the author of The Glass Box: The Shocking True Story of How CrossFit Broke the Rules, Made Millions, and Changed Fitness Forever.
This is a narrative nonfiction account of the founding of CrossFit, its growth to become a global fitness empire, and its various twists and turns through the COVID pandemic and Greg Glassman’s ouster in 2020 (and beyond). It features interviews with over 100 former employees, athletes, coaches, and more, as well as extensive interviews with Greg Glassman himself. It comes out today worldwide and is available wherever books are sold.
You can read the prologue for free at Men’s Health magazine right here: https://www.menshealth.com/fitness/a74196321/crossfit-book-the-glass-box-excerpt/
I have also spoken at length about the book on The Barbell Spin, Coffee Pods and WODs, and other podcasts in the space, and you may have heard me on NPR yesterday talking about the book as well.
I’ll be here to answer questions from 11am EST — ask me anything about the book, my interviews, my own CrossFit background, whatever you want. Thanks in advance!