WATCH: Made to be Broken

Back in 2016, ultrarunner Karl Meltzer set a new Appalachian Trail speed record, covering the approximately 2,189-mile trail running from Maine to Georgia in 45 days 22 hours 38 minutes. That record has since been broken, but it’s still insanely impressive nonetheless.

During his record-setting attempt, Meltzer maintained an average of approximately 46 miles per day and had to cover around 85 miles in the final 24 hours to set the record.

A camera crew with Meltzer’s sponsor Red Bull followed the runner on his journey, creating a film about Meltzer’s adventure. The film is “Karl Meltzer: Made to be Broken.” Check out the trailer below and then watch the full film here.