VETERAN trainer Noel Ennevor created a master stroke when he posted his American-bred colt Emperor Hall to a stunning win over Mismyrtleboyrichie in the $1,320,000 Prime Minister's Stakes Trophy feature by a length at Caymanas Park yesterday.

Owned by Ballydoyle, Emperor Hall ran 2,000m in 2:06.3 to chalk up his second win from three starts for the season.

It was only the second defeat for Mismyrtleboyrichie since his two-year-old anomaly. Since then, the quite brilliant American-bred three-year-old colt was on a 10-race winning streak which, with victory yesterday, would have placed him one win away from equalling the record of most wins at the Park — 12 held by War Zone.

Having beaten out of sight all the best talent he faced over sprint distances, Mismyrtleboyrichie took on the stamina-testing run for the first time.

However, saddled with top weight of 57.0kg, he might have bitten off a little more than he could chew after allowing two-turn specialist Emperor Hall all of 7.0kg and paid the price.

From the off, it showed that it was going to be difficult for Mismyrtleboyrichie as Emperor Hall, with the light weight of 50.0kg and the champion jockey Dick Cardenas, motored to the lead with Mismyrtleboyrichie, ridden by Omar Walker, in close touch, but was relegated to third after Lady Macbeth, partnered by Paul Francis, slipped by to go second.

At one stage Lady Macbeth led briefly, but try as Walker did to get the big American going leaving the 80m pointm Emperor Hall kept finding a little extra to bring them in the lane.

After setting down for the drive with Emperor Hall scrubbing the rails, Mismyrtleboyrichie — who was a strep behind — pointed at the 150m marker, but only briefly, as Cardenas got Emperor Hall rolling to go away from his pursuer for the victory.

Trainer Ennevor was not surprised by the victory.

"He had the handicaps in his favour for one and he loves two-turns so victory was not far-fetched. Mismyrtleboyrichie is quite a brilliant horse and just returning might have had an effect on his performance. But he is a very good horse and he has many races to win," he said.

A four-year-old colt by Closing Argument out of Gold Gram (Touch Gold) and bred by Harold J Plumley, Emperor Hall was winning for the seventh time from 15 career starts and earned $720,700 as the winner's share for a bankroll of $4,852,150 lifetime.