Connections of Born Tobouggie anticipate a bright future for the three-year-old after she took victory at Leicester.
The 6-1 chance, trained by Henry Cecil and ridden by Tom Queally, showed pleasing dash to defeat Dream Day by a length and a quarter in the Iveco Eurocargo Fillies’ Conditions Stakes.
Ghaidaa, the odds-on favourite, could only finish third.
Part-owner Chris Silverwood, who plays cricket for Middlesex, said: “We are chuffed to bits, carrying equal weights with a horse rated 101 is fantastic.
“Tom gave her a great ride and all credit to Henry and his team.
“I think she showed enough potential to merit staying in training and have a pop at some nice races next year.”
Frankie Dettori stole the show when making it third-time lucky with victory on High Alert in the Iveco Stralis Conditions Stakes.
The Italian, runner-up in two earlier races, made amends in his own inimitable style on the 11-4 winner.
Holding Jeremy Noseda’s youngster towards the rear of the field, he timed his challenge to perfection to lead inside the last 100 yards and beat Indian Art by a length.
Dettori had been out of luck on his two rides for Godolphin in both divisions of the EBF Reference Point Maiden Stakes.
Commenting on his day, Dettori said: “I thought the first two were my best, but I won on the third – it always seems to be like that.
“The maidens look to be good races.”
Bravo Echo, the 2-1 favourite, certainly looked the part as he stepped up on a promising debut at Newmarket to win division one.
The John Gosden-trained colt got the better of Dettori on Emirates Roadshow inside the final furlong to win by three-quarters of a length under Richard Mullen.
Dettori was also outgunned in division two as Al Marmoom went down by two and a quarter lengths to Box Office (7-1), ridden by Royston Ffrench.
Opinion Poll had failed to show much on his debut, stumbling shortly after the start, but the 16-1 shot showed his true colours when landing the EBF Soar Maiden Stakes by a length from Three Moons.
“He fell out of the stalls at Newmarket, stumbled and was never in the race - so he basically didn’t have a race,” said trainer Michael Jarvis’ travelling head lad, Paul Rutter.
“It was a different kettle of fish this time. He jumped and travelled and saw the race out well.”
Rachael Kneller, 21, rode her second career winner when getting home the Reg Hollinshead-trained Stravita (5-1 joint-favourite) by a head from long-time leader Corking in the Iveco Daily Lady Riders’ Claiming Stakes.
Brighton trainer Gary Moore struck with his only runner at the east Midlands track with Singleb.
The 15-8 favourite, ridden by his son Ryan, took the Whissendine Selling Stakes in good style from Blue Charm.
However, connections had to go to 10,000 guineas to retain the gelding.