You will be given a definition of a task first, then some input of the task.
Craft one correct answer to the question given in input. To make it more interesting, try to use non-stereotypical language if possible. Make sure your correct answer is reasonably long, consistent with the context, and requires common sense (instead of explicit extraction from the context.) In your answer, use as few words as possible from the given context. Use a response that is uncommon/non-stereotypical, so that it is less predictable. To be less repetitive, please vary your language for each question.

Context: The most exciting event happened in aquatic centre . 400 m Freestyle women was totally awesome , Adlington from Britain won from an American woman who had hold to her 1st position from the start only to be taken away by Adlington on the last second . The same thing happened in 400 m Freestyle Relay Men , French was leading the way only to be taken on the last second by USA . Both races were incredible .
Question: Why were these swimmers able to take the lead at the last second to win the event ?
Output:
Holding the lead throughout the event is tiring and requires a lot stamina and at the end of the event it is difficult to hold off on someone who is right on your tail.