4th-Keeneland, $79,735, Alw (NW1X)/Opt. Clm ($75,000), 4-2, 3yo, f, 7f, 1:23.76, ft, 4 1/2 lengths. CARRIBEAN CAPER (f, 3, Speightstown--Checkupfromzneckup {SP, $187,470}, by Dixie Union) romped by eight lengths on debut at Fair Grounds Feb. 13--good for 'TDN Rising Star' honors--and showed a new dimension Friday to remain unbeaten. Off at 4-5, the dark bay broke a touch flat-footed and eventually settled in to draft behind Tiz Splendid News (Maclean's Music) from third. Carried very wide by the pacesetter entering the stretch, she pulled clear midway down the lane and...