Junior Rafael Alvarado (born May 20, 1986) is a Venezuelan jockey who competes in the sport of American thoroughbred horse racing.
He rode his first winner on December 30, 2005, at La Rinconada Hippodrome near Caracas, Venezuela before moving to ride in the United States in 2007 where he got his first winner on February 17 at Gulfstream Park in Hallandale Beach, Florida.
In the 2012 Preakness Stakes he ran fourth aboard Zetterholm.
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