Dean Martini proved to be a shrewd claim for trainer Tom Amoss after upsetting the $500,000 GIII Ohio Derby Saturday at Thistledown, which offered 50 points towards the Sept. 5 GI Kentucky Derby. Away alertly from his rail draw, the 14-1 shot contested the pace heading into the first turn and was a close-up third as the first quarter went in :22.80. Shuffled back a bit on the fence as the half went in :47.22, the bay reasserted on the backstretch, heading pacesetter Lebda (Raison d'Etat). Dean Martini continued strongly...