At Rosehill Gardens in Sydney, Coolmore Stud stallion and former Australian Champion racehorse So You Think (High Chaparral-Triassic, by Tights) celebrated an elite race success when 3YO Australian-bred colt D'Argento (So You Think–Fullazz, by Redoute's Choice) put on a demonstration of his abundant class when powering home for an easy win in the $600,000 Gr1 Rosehill Guineas (2000m) for 3YOs, defeating stable-mate Tangled & Furore. A $135,000 purchase by Star Thoroughbreds at the 2016 Magic Millions Gold Coast Yearling Sale from the draft of Baramul Stud, D'Argento improved his record to 4 wins and 1 placing (including the Gr2 ATC Hobartville Stakes) from 6 starts for $569,275 in earnings. Trainer Chris Waller said he will decide in the next few days whether to run D'Argento in the $3 million Doncaster Mile or the $2 million Australian Derby (2400m) at Randwick on 7 April. "I had serious doubts about him getting 2000 metres because I've seen the brilliance that he's got [but] he can obviously stay," Waller told Sky Racing. "I've got to work out from a colt's perspective, where's his best value? Is it a Doncaster so he can show off that speed over a mile, or do we go down the Derby path? We'll think about everything in the next few days." From the Listed MRC Debutante Stakes winner Fullazz, D'Argento hails from the family of stakes winners Laudemio, Loving Cup and Vintage Dance.