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Joan Benoit Samuelson was the first women's marathon Olympic champion, winning gold in 1984.
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Fun fact: Johnson ran with the number 4848. His NASCAR number is 48.
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Say what you want about celebs and earning their spots or not, but Johnson's time of 3:09:07 is impressive in its own right.
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That's three-time Super Bowl champion to you.
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If you know, you know.
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