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EUGENE, OR - MAY 26: Kara Winger of USA throws the javelin during the 2017 Prefontaine Classic Diamond Leagueat Hayward Field on May 26, 2017 in Eugene, Oregon. (Photo by Jonathan Ferrey/Getty Images)

EUGENE, OR - MAY 26:  Kara Winger of USA throws the javelin during the 2017 Prefontaine Classic Diamond Leagueat Hayward Field on May 26, 2017 in Eugene, Oregon.  (Photo by Jonathan Ferrey/Getty Images)