Unbreakable Runner

Decent insight for anyone who runs and is not familiar with CrossFit. The skills and drills integration was novel to me (at the levels MacKenzie prescribes) - his short-hand notation for workouts is still pretty frustrating (and not nearly as intuitive as other CF jargon). I'd give it a higher rating if that were more of a focus, but it seems almost purposefully obtuse (no master index, helpful reference sheet, just an almost throw-away “This will get easier as you get used to it.”)

Other than that, decent read, worth it for anyone looking for a change in their racing or CF focus (and I believe it would make races like Ultras more safe).