She has an awfully long way to go to from a Brighton handicap, but Young Jackie is managing a passable impression of her famous half-brother Young Mick as she continued her progress under 19-year-old apprentice Jordan Vaughan.
Young Mick was one of the very best horses George Margarson has ever trained, making his mark largely in valuable middle-distance handicaps after losing his maiden tag in a lowly claimer at Wolverhampton in 2006.
The newer member in the Kentish family's ownership is five already and also got off the mark at Dunstall Park in January before adding three further victories, all but one of which have been under Liverpudlian Vaughan.
Young Jackie (6-1) came down the middle of the track in the Catering Services International Handicap and held on by a length and a half from 6-4 favourite Beacon Lady, whose rider Nicole Nordblad lost a little shine from her exemplary course record by picking a wider spot.
"She's similar in a way to Young Mick as they both got better and better as they got older. "Young Mick started off a mark of 54 and got to over 100. I'm not saying that will happen with her, but she's a late improver," said Margarson's daughter and assistant, Katie.
Vaughan said: "I only started at George's last September so I didn't get to sit on Young Mick, but she has given me three winners from my six so far.
"I wanted to ride horses when I was 14 but we couldn't afford it so I went and worked at a local riding school so I could ride them for free. Then I went to the British Racing School and George has been really good to me."
Breeding suggests Renoir's Lady should be tackling middle distances but she proved sprinting is more her forte in the 3663 First For Food Service Handicap.
By Peintre Celebre out of the Barathea mare Marie des Blois, the 6-1 chance is another late bloomer. "We thought at the start of the year that with her pedigree she would get better as she got older, but we didn't think she would be running over six furlongs But she has always shown plenty of poke and she can possibly follow up after that," said trainer Simon Dow.