Jose Ortiz will take over as the rider on Improbable when he makes his final start before the Kentucky Derby in the Grade 1, $1 million Arkansas Derby on April 13 at Oaklawn Park, said Elliott Walden, the president and chief executive of co-owner WinStar Farm, on Tuesday.
Improbable won all three of his starts last year, including the Grade 1 Los Alamitos Futurity. He suffered the first loss of his career in his most-recent start, his first start at 3, when narrowly losing a division of the Rebel at Oaklawn. He has been ridden in all his starts by Drayden Van Dyke.