In 2017 she won a minor event on her racecourse debut and then finished second to Polydream in the Prix du Calvados before her victories in the May Hill Stakes and Fillies' Mile.

She was from the fourth crop of foals sired by the Aga Khan's stallion Siyouni whose biggest win came in the 2009 running of the Prix Jean-Luc Lagardère.

[6] Laurens made her debut in a maiden race over seven furlongs at Doncaster Racecourse on 20 July in which she started at odds of 9/2 and won by a neck from Exhort.

[7] The filly was then sent to France and stepped up in class to contest the Prix du Calvados over 1400 metres at Deauville Racecourse a month later and finished second of the eleven runners, beaten one and three quarter lengths by the winner Polydream.

After tracking the leaders, Laurens stayed on strongly in the closing stages and won in a "blanket finish" from Dark Rose Angel, Nyaleti and the Aidan O'Brien-trained Sizzling.

The filly was dropped back to one mile for the Matron Stakes at Leopardstown Racecourse on 15 September in which Danny Tudhope substituted for the injured McDonald.

John Dance said that he felt that the filly had not been given credit for her previous victories and added "It just niggled, because I thought people were underestimating her again, so to come and prove it is great.

After taking the lead before half-way Laurens got the better of a sustained struggle with Happily to win by a head with two and a half length back to the 25/1 outsider Altyn Orda in third place.

[19] After her owner paid a supplementary entry fee of £70,000 Laurens was matched against male opposition for the first time in the Queen Elizabeth II Stakes at Ascot Racecourse on 20 October.

[20] With McDonald back in the saddle she briefly took the lead two furlongs out but tired in the closing stages and came home eighth of the thirteen runners behind Roaring Lion.

The filly began her third campaign in the Group 1 Lockinge Stakes over one mile at Newbury Racecourse on 19 May and was made the 5/1 joint favourite with Beat The Bank in a fourteen-runner field.

She was among the leaders from the start and went to the front in the last quarter mile but was overtaken inside the final furlong and was beaten two and a half lengths into second place by the six-year-old gelding Mustashry.

A month later the filly started at odds of 11/2 for the Queen Anne Stakes at Royal Ascot in which she took the lead two furlongs out but was outpaced in the closing stages and finished sixth behind Lord Glitters.

[24] Laurens was dropped back to seven furlongs for the Group 2 City of York Stakes on 24 August for which she started 2/1 favourite but failed by a nose to overhaul the front-running three-year-old colt Shine So Bright.