Results of the 2011 Boise Half Ironman 70.3, initially ranked among our toughest races, were dramatically faster, with an average finish time of 5:58, compared to 6:21 in 2010. The improvements were equally dramatic in nearly every age group.
What explains the difference? Conditions -- harsh in 2010, perfect in 2011? Regardless, these results will pull Boise from the top 5 toughest half ironman list when we update the rankings.