04/20/2017 1:10PM

Mach One Rules seeks elusive win over Barkley

Email

Barkley, who makes his 4-year-old debut at Emerald Downs on Saturday, is a head away from being undefeated. His lone loss in seven career starts came in the $75,000 Emerald Downs Derby, where Opportunistic edged him in a thriller.

Already have an account? Log In to DRF.com