Two-year-old champion Classic Empire recovered from a poor performance his last time out and locked up a Kentucky Derby bid Saturday with a come-from-well-behind win in the $1 million Arkansas Derby at Oaklawn Park. Conquest Mo Money, which broke fast but couldn’t hold off Classic Empire in the final 16th-mile, could be Kentucky-bound if his owners put up a $200,000 supplemental fee. Earlier Saturday, Senior Investment chased down West Coast in the final furlong to win the $200,000 Grade 3 Lexington by a head Saturday at Keeneland, but the 10 points he earned leaves him outside looking in for the May 6 Kentucky Derby.