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SACRAMENTO, CA - MAY 22: Megan Guarnier of the United States riding for team Boels-Dolmans Cycling Team in the yellow leader's jersey rides in the peloton during stage four of the Amgen Breakaway From Heart Disease Women's Race on May 22, 2016 in Sacramento, California. (Photo by Chris Graythen/Getty Images)

SACRAMENTO, CA - MAY 22:  Megan Guarnier of the United States riding for team Boels-Dolmans Cycling Team in the yellow leader's jersey rides in the peloton during stage four of the Amgen Breakaway From Heart Disease Women's Race on May 22, 2016 in Sacramento, California.  (Photo by Chris Graythen/Getty Images)