She was also disqualified from two previous races: Ironman Canada 2013, which officials said she had not completed (and where she said she also lost her chip),

She was also disqualified from two previous races: Ironman Canada 2013, which officials said she had not completed (and where she said she also lost her chip), and the 2014 Vancouver Triathlon... Cyclists do not wear timing chips in the Test of Metal; they affix numbers to the front of their bikes. Miller’s somehow became detached from her bike in the 2015 race, the only such incident among more than 800 competitors. What are the chances that the fastest athlete loses their chip in not just one race but three? You'd think after the first instance the athlete would be more rather than less vigilant, although perhaps not if they are no consequences. Although it might seem unfair to the occasional real winner who loses their chip, equating "No chip" with "Did not finish" seems like a safer practice. In the case that a real winner is disqualified, they still know that they were capable of winning the race, and (unless they have fantastically bad luck with velcro and twist ties) will likely will go on to win other races. But reinstating a potential cheater is demoralizing to everyone else, and unless there is a correlation between going fast and losing chips, many of the reinstatements are going reward fraudulent behavior.