United is a two-time stakes winner on dirt and winless in six starts on grass. Contrary to that evidence, trainer George Weaver thinks turf is United's preferred surface.
"He acts like a dirt horse in the morning, but I think he's a better runner on grass," Weaver said. "He hasn't won a race on the surface yet, but he has run well behind some tough turf horses, like English Channel and Purim."