Admiral Dennis (c, 2, Constitution--Gulf Coast, by Union Rags), a luckless third as the favorite sprinting on debut at Churchill Downs Sept. 19, ran to the money as the 3-5 choice with a 'TDN Rising Star' performance for trainer Brad Cox in the Churchill Downs nightcap Thursday. Drawn widest of all in post nine, the $425,000 Keeneland September yearling graduate tracked the early leaders from an outside third through an opening quarter in :22.92 in the one-turn mile contest. Admiral Dennis revved up three deep with a flashy move to...