It was no wonder that emotions poured so freely following Animal Kingdom’s rousing victory, in which he closed his final half-mile in a spectacular :47 1/5, the second-fastest closing half ever in the Derby behind Secretariat.  

Haskins Derby Recap

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http://cs.bloodhorse.com/blogs/horse-racing-steve-haskin/archive/2011/05/09/haskin-s-derby-recap-kingdom-come.aspx