Triathlon has done a lot of great things for a lot of great people, and here’s yet another one that crossed my Facebook feed this afternoon: Marcus Cook.

From nearly 500 pounds to a three-time marathoner and Ironman finisher, this guy is a testament to the power of sport. I love his message too:

“Go find a fat guy (and) show him my story. Ask him to do a tri with you. Change his life for ever. It did mine. (I mean don’t go searching for the nearest fat dude but, look around in your office, work place, local bar, church or a place you frequent that has someone that you could bring along)”

See his journey on his Facebook page, Big to Little.