While it was no surprise that Mirinda Carfrae knew what it takes to come from behind to win an Ironman triathlon, and it also surprised no one that she was a fast runner, at the
2013 Ironman World Championship, she stunned competitors and live and online spectators with an extraordinary 2:50 marathon and a new women's record time -- 8:52:14 -- in taking her second Kona title.
How did she do it? Here's our analysis, comparing her place and performance at each checkpoint in the race, compared to top women competitors. Here's how her race unfolded, and how she set the new marathon and overall women's
Ironman Triathlon World Championship records.
