Continuing the purple patch of Joseph O'Brien and Dylan Browne McMonagle, the progressive Limestone (New Bay) edged the photo at the end of Wednesday's G2 Queen's Vase at Royal Ascot.One for the St Leger candidates, the mile-and-three-quarter contest lacked a clear-cut candidate this year and it was only in the dying strides that the colt who races for Valmont, Al Shaqab and Ballylinch Stud put his name on the honour roll ahead of Godolphin's Del Maro (Camelot). The official margin was a nose, with the long-time leader and outsider Ranga Tang (Lope De Vega) only beaten a length in third at 40-1.“They caught me for pace off the bend, but I knew he'd come home strong in the last furlong,” the jockey said of 100-30 second favourite, who had taken the same Yeats Stakes last month as had last year's Queen's Vase winner Carmers. “He's very tough and we were confident he'd get the trip. The sky's the limit.”CLOSE! Limestone wins the Queen's Vase in a thriller! #RoyalAscot pic.twitter.com/2O1jmdPnpN— At The Races (@AtTheRaces) June 17, 2026 The post Limestone Prevails In Queen’s Vase Thriller appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.