Tatyana McFadden

Paralyzed below the waist at birth by spina bifida, McFadden, 27, spent her first six years in a Russian orphanage. At age eight, equipped with a wheelchair and living in Clarksville, Md., she embarked on a racing career that has included three Paralympic golds and five silvers on the track, and wins in all four major U.S. marathons.

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