Sent off as the prohibitive favourite, Define The World, with Paul MacDonell in the bike, seized the front end and didn't let go till he crossed the wire in 1:57.4, just a head in front of a determined Sergeant York and Keith Oliver.

Two lengths back in third was longshot, Striking Rich, with Chris Christoforou at the lines.

Define The World OSS Super Final 3 yo trotting colts

Breeders Al Libfeld of Pickering, Ontario, owns the gelded son of Duke Of York, who can now boast 12 wins in 25 lifetime starts. Macdonell also has bragging rights, having emerged triumphant in four of the eight OSS Super Finals this evening.

Karen Briggs