As a foal in December 2018 he was consigned to the Arqana Breeding Stock sale at Deauville and was bought for €18,000 by representatives of the bloodstock agency BBA Ireland.
[6] The colt was then moved up in distance to contest the Listed Ascendant Stakes over one mile at Haydock Park when he started joint-favourite but was beaten into second place by the Richard Hannon Jr.-trained Fancy Man.
He was among the leaders from the start, gained the advantage two furlongs from the finish and although he "wandered around" in the closing stages he held on to win by half a length and a neck from Adayar and Yibir.
[9] He returned to the track for the King Edward VII Stakes over 1+1⁄2 miles on heavy ground at Royal Ascot on 18 June and started the 13/8 favourite against five opponents.
He’s not a today horse, he’s very much for the longer term as well so we’ve lots of exciting options.”[11] On 14 July Alenquer was sent to France and stepped up to Group 1 class for the Grand Prix de Paris over 2400 metres at Longchamp Racecourse where he started the 2.9/1 second choice in the betting.
[12] Alenquer began his third campaign in the Winter Derby over ten furlongs on the synthetic Polytrack surface at Lingfield Park on 23 February when he was ridden by Cieren Fallon and started 11/4 second favourite behind the six-year-old gelding Lord North.
[13] Armando Duarte commented "He'll improve massively for this race as he was only 80 per cent fit and hopefully this will set him up nicely for the Group 1 targets such as Dubai Sheema Classic or maybe the Prix Ganay.
On 22 May Alenquer was sent to Ireland to contest the Group 1 Tattersalls Gold Cup over 10+1⁄2 furlongs at the Curragh and started the 7/2 third choice in the betting behind Lord North and State Of Rest in an eight-runner field which also included Mac Swiney, Helvic Dream and Broome.