Nominations for the 72nd running of the Grade 2, $300,000 Ohio Derby don't close until May 23, but there already has been a strong response from trainers, according to Bill Couch, director for racing and racing secretary at Thistledown. Couch said he has five possibles for the June 2 derby, including two starters from the Kentucky Derby - fifth-place finisher Sedgefield, trained by Darrin Miller, and the Doug O'Neill-trained Liquidity.