| 21. | First Marathon ( U . S . A . ) Inc.
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| 22. | But the Marathon's centennial has drawn unusually high interest.
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| 23. | Mexicans have won three of the last four New York marathons.
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| 24. | In the early 1980s, the marathon underwent an identity crisis.
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| 25. | With it went the end of men-only Boston Marathons.
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| 26. | Now he will run the Boston Marathon for the 16th time.
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| 27. | Attwood took more than five hours to complete his first marathon.
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| 28. | Running a marathon is a grueling test of body and mind.
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| 29. | You don't have to run marathons to know cramps.
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| 30. | I smoked like I was on some kind of destructive marathon.
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