Yarraman Park’s top class young sire Hinchinbrook featured at Ascot in Perth on Saturday when his brilliant daughter Whispering Brook remained unbeaten after posting a commanding win in the Group II WATC Karrakatta Plate. The Simon Miller trained filly had won her three previous starts, two of them in stakes events and was able to overcome a wide gate to stay perfect. She jumped fast for Peter Knuckey and quickly took up the lead before bolting away to win the 1200 metre sprint by a length and three-quarters. “The scary thing is she just keeps coming on,” Simon Miller said. “Every time she’s raced this time in from the trial to the next start to the next, she just kept coming on and improving. “I came to the races today and I was so relaxed. “I’m so proud of my staff – all the way through we’ve had so much fun. “It’s just a good feeling.” A $45,000 Magic Millions National Weanling purchase from the Hillside Thoroughbreds draft for Aquanita Racing, Whispering Brook has won all four starts to date earning $505,350 in prizemoney. The Group II WATC Sires Produce Stakes in two weeks time is next on her agenda. Bred by Hillside Thoroughbreds, Whispering Brook is the second winner for Artful Whisper (USA), a half-sister to stakes-winner High Maintenance. Whispering Brook is one of four stakes-winners for Hinchinbrook, who is a dominant leader of the Australian Second Season Sires division with some $3.1 million in progeny earnings this season. A three-quarter brother by Fastnet Rock to Snitzel, Hinchinbrook has nine entries for the Inglis Australian Easter Yearling Sale. Click here to see them. His growing popularity was reflected last spring when he covered his biggest and best book of 158 mares at a fee of $16,500.