City Boy was a surprise winner of a close-run contest for the Grade Two Nearctic Stakes at Woodbine.
Nine lined-up for this six-furlong dash on the turf.
Boreal Spirit and City Boy were fast away, but it was Yorkton who powered into a two-length lead.
Yorkton continued to race clear of Richiesinthehouse by three lengths, on the home bend.
But in the home stretch, the leader was soon passed as the challengers came four-wide.
Richiesinthehouse, City Boy and Reconfigure all threw down the gauntlet and it was this trio, who raced almost in a line with half a furlong to run.
But City Boy pulled out more under Jesse Campbell, to go on and score by about a head from Reconfigure and Richiesinthehouse, in an exciting finish.