B. Russel Hadley was aboard for the head win over Llano Cartel and it was a neck back to third-place finisher Obamano.
Rockin Disco, a gelded son of Rock Solid Jess, raced the 350 yards over a track rated as good in 17.509 seconds for his third win from six starts.
Rockin Disco has worked his way up the class ladder for trainer Michael Wakefield. He won his maiden in his second career start at Sam Houston Race Park. He then scored his second career win when he won his John Deere Ruidoso Juvenile Challenge trial by one-half length.
The win in the John Deere Ruidoso Juvenile Challenge awards Rockin Disco with a berth in the $150,000 John Deere Juvenile Challenge Championship at Prairie Meadows in October.
Runner-up Llano Cartel was the co-fastest qualifier when he finished in a dead heat in his trial with Fastpass Regard, who came back to finish fourth in the John Deere Ruidoso Juvenile Challenge. The Teller Cartel gelding won his maiden in his trial and his best previous effort was a second-place finish in the Remington Park Juvenile.