The British former champion jockey is undoubtedly the key to Luca Cumani’s quirky seven year old and cut through the pack with fierce acceleration to score under the Meydan floodlights.
Having finished second to Godolphin’s runaway winner Gladiatorus two years ago when the race was staged at Nad Al Sheba, he had no luck in running 12 months ago when coming past the post in 11th place under Christophe Lemaire.
He found his path blocked on multiple occasions that night and was still travelling powerfully when crossing the line.
However, reunited with the jockey who has guided him to six of his previous seven wins, Presvis made amends in heart-stopping fashion.
He was slowly out the gates in his usual style and trailed the field along the back stretch as Beauty Flash and Strawberrydaiquir led at a decent gallop.
Moore still had his 15 rivals to pass off the final bend but found a golden opportunity towards the far rail as the runners fanned out and struck for home halfway down the home stretch.
Balanchine winner River Jetez was in front by the time Presvis emerged from the pack and the top-class international campaigner brushed her aside to give Moore and Cumani their first Dubai World Cup night wins.
River Jetez ran a solid race in second but Jamie Spencer failed to find a smooth passage on third-placed Wigmore Hall.
The recent Jebel Hatta winner, who had Presvis back in third on that occasion, was pushed wide at the top of the lane and was bumped several times before staying on through the final 200m to be beaten a length and a half by River Jetez.
Cumani said of the winner: “Ryan always rides him like that and he was absolutely fantastic on him tonight.
“I owe this horse too much and he will head out to Hong Kong now for the QE II Cup. He’ll then go to Singapore and head home to the stud before starting out again.
“The only shame is that the Hong Kong race is on the same day as the English Guineas so I do not know who will ride.”