Star Catcher made her first and only appearance as a juvenile in a maiden race over one mile on the synthetic Polytrack surface at Chelmsford City Racecourse on 20 December. Ridden by Robert Havlin she was made the 4/5 favourite but never recovered from a slow start and came home sixth of the twelve runners, six and a quarter lengths behind the winner Mister Chiang.
2019: three-year-old season
Spring
Star Catcher was ridden in all of her races as a three-year-old by Frankie Dettori. On her seasonal debut she started 10/11 favourite for a maiden over ten furlongs on soft ground at Newbury Racecourse on 12 April and recorded her first success as she drew away from her ten opponents in the closing stages to win by four and a half lengths. After the race Dettori told Gosden "don't go for the Oaks, go to the Ribblesdale, she's not got the strength for the Oaks yet". On 18 May, over the same course and distance, the filly was stepped up in class for Listed Fillies' Trial Stakes in which she led until being overtaken in the final furlong and finished a close third behind Queen Power and Lavender's Blue. Dettori blamed himself for the defeat, saying that he had set too slow a pace.
Summer
Despite her defeat at Newbury, Star Catcher was moved up in grade again for the Group 2 Ribblesdale Stakes over one and a half miles at Royal Ascot on 20 June and started the 4/1 second choice behind the Aidan O'Brien-trained Fleeting who had won the May Hill Stakes and finished third in the Epsom Oaks. The other nine runners included Queen Power and Frankellina as well as Star Catcher's well-fancied stablemates Fanny Logan and Sparkle Roll. Star Catcher raced in mid-division before taking the lead early in the straight and pulled away in the final strides to win by one and a half lengths from Fleeting. On 20 July the filly was sent to Ireland for the Irish Oaks over one and a half miles at the Curragh. As she had not been among the original entries for the race, her owner was required to pay a supplementary fee of €40,000 to secure her place in the contest. She started the 7/2 second favourite behind Pink Dogwood in an eight-runner field which also included Fleeting and Iridessa. Star Catcher led from the start, accelerated clear of her opponents in the straight, and held off a late challenge from Fleeting to win by half a length. John Gosden commented "It was the obvious race to run her in after her Ribblesdale win, and we got the result we wanted. But I've said it before and I'll say it again: The Irish classics close too soon... When Frankie won on her at Royal Ascot, he said the last furlong was her best, so he was determined it wouldn't be a falsely run race. You leave things to Frankie, and his tactics today were perfect. We're very lucky to have him. We knew Star Catcher had really done well since the Ribblesdale. She's very progressive and can only get better".
Autumn
After a late summer break Star Catcher returned on 15 September at Longchamp Racecourse when she was matched against older fillies and mares in the Group 1 Prix Vermeille over 2400 metres. She started the 11/10 favourite ahead of her stablemate Anapurna in a field which also included Fleeting, Pink Dogwood, Channel and Villa Marina. Star Catcher took the lead at the start and made all the running, staying on well in the straight to win by three quarters of a length from Musis Amica. After the race Dettori said "She's a very good filly. She stays well, she doesn't mind being in front and the ground was slick today and she likes it. I couldn't fault her. She didn't put a foot wrong... once she got to the front she was full of enthusiasm. She travelled strong. We went a decent gallop and she kept it up". In the British Champions Fillies & Mares Stakes run on soft ground at Ascot on 19 October Star Catcher was made 7/4 favourite against eleven opponents including Fleeting, Anapurna, Pink Dogwood, Sparkle Roll, Tarnawa, and Antonia de Vega. Star Catcher raced in fourth place behind the front-running Delphinia before producing a sustained run in the straight. She overtook Delphinia inside the final furlong and won by a short head. John Gosden commented "she was determined to get her head in front. You can have nothing but admiration for courage like that. She is a brave, wonderful filly and will now have a lovely winter off".
