Andrew Strempke just posted an in depth write up on what it was like to complete the Triple Crown.
“The triple crown challenge was dreamed up by bikepacker David Goldberg in 2012. It is to complete the three classic dirt bikepacking events in one calendar year: The Arizona Trail 750, Tour Divide and The Colorado Trail Race. This is a huge undertaking, both in terms of total time spent pedaling and especially managing the short recovery time between the events. Kurt Sandiforth was the first to complete the challenge in 2012 and set the benchmark for the fastest time. It is understood that all efforts should be undertaken as a part of the Grand Depart of each event. ITTs of all three are respectable (and still happily documented here), but not considered a full triple crown challenge completion.” http://www.bikepacking.net/triple-crown-of-bikepacking/