Alpine Star is a chestnut filly with no white markings bred in Ireland by the Niarchos family. She was sent into training with Jessica Harrington at Moone, in County Kildare. She was from the second crop of foals sired by the 2014 German Horse of the YearSea The Moon, who won four of his five races before his racing career was ended by injury. Alpine Star's dam Alpha Lupi was unraced but came from a very successful female bloodline which has been in the ownership of the Niarchos family for several generations: she was a daughter of East of the Moon who was in turn a daughter of Miesque. In 2015 she had produced Alpha Centauri.
Racing career
2019: two-year-old season
Alpine Star was ridden in all of her races as a two-year-old by Shane Foley. On her track debut she started at odds of 7/2 for a maiden race over seven furlongs at Leopardstown Racecourse on 11 July and finished third of the seven runners behind Love and Soul Search under a gentle ride from Foley. On 2 August the filly started 7/4 favourite for a similar event over the same distance at Galway and won "comfortably" by three and a quarter lengths from the Aidan O'Brien-trained Santiago after taking the lead a furlong from the finish. Three weeks after her win at Galway Alpine Star was stepped up in class to contest the Group 2 Debutante Stakes at the Curragh and started the 2/1 second choice in the betting behind Love in a nine-runner field which also included Soul Search. After tracking the leaders, Alpine Star made steady progress in the last quarter mile and overhauled Love in the final strides to win by a short head. After the race Harrington said "She’s tough, isn’t she. She’s all heart and stays really well. Shane said they went hard the whole way and she got a little bit lost in the middle of the race, but when she got upsides all she wanted to do was stick her head out. She's tough and needs a mile." The filly was expected to end her season with a trip to France for the Group 1 Prix Marcel Boussac at Longchamp Racecourse in October but was pulled out of the race after sustaining a muscle injury. In the official rating of Irish two-year-olds for 2019 Alpine Star was rated the fifth-best juvenile filly of the year behind Millisle, Albigna, Love and Cayenne Pepper.
2020: three-year-old season
The flat racing season in England and Ireland was disrupted by the COVID-19 Pandemic and Alpine Star did not make her reappearance until 20 June when she was sent to England to contest the Coronation Stakes over one mile at Royal Ascot. Ridden by Frankie Dettori she started the 9/2 third favourite behind Quadrilateral and the Breeders' Cup Juvenile Fillies Turf winner Sharing in a seven-runner field which also included Run Wild, Cloak of Spirits, So Wonderful and Love Locket. After settling behind the leading group as Run Wild set the pace, Alpine Star took the lead approaching the final furlong and drew away in the closing stages to win "comfortably" by four and a half lengths from Sharing. Jessica Harrington commented "I'm very lucky to have fillies like that. I couldn't believe how good she was. I actually have no idea what the plan will be. I need to talk to the owners and Frankie, and then we'll make the decision" while Dettori, who was winning the race for the first time said "I've never been able to be on the right horse in this race. Alpine Star was beautifully prepared by Jessica and I'm thrilled... She'd definitely get a mile and a quarter, she did her best work at the end but I don't know about a mile and a half... she's a good filly and won in good style". On 5 July Alpine Star was sent to France to contest the Prix de Diane over 2000 metres at Chantilly Racecourse in which she was ridden by Stephane Pasquier and went off the 2.1/1 favourite in an eleven-runner field. She led for most of the way before heing overtaken by Fancy Blue 200 metres from the finish and despite rallying strongly in the closing stages she was beaten a short neck into second place.
