Review navan 17th May Gold Cup ante-post favourite Forgotten Rules made an impressive start to the campaign as he resisted the strong challenge of Answered to take the Coolmore Vintage Crop Stakes at Navan.The Dermot Weld-trained five-year-old started his career by winning a Punchestown bumper and this was just his fourth race, all of which he has won.Pat Smullen settled him in third place before taking it up a quarter of a mile out, and though Answered loomed up with a threatening bid, the 8-11 favourite kept finding more and was well on top as he passed the post with a length and a quarter to spare.Mick Halford's smart sort Toscanini was not far behind the best as a juvenile and he began his second season with a cosy victory in the Brews Hill Race.Runner-up to subsequent 2000 Guineas hero Gleneagles in the National Stakes when last seen, the 9-10 favourite eased into the lead under Shane Foley going to the furlong pole and quickly put the race to bed, before readily holding Ainippe by a head.Joe Eile returned to Irish action with Ger Lyons in the navanracecourse.ie Handicap after an unsuccessful stint in England and the 10-1 shot slipped into the lead on the far rail at the furlong pole before edging clear to win by half a length under Colin Keane.David Wachman introduced a speedy youngster in Auld Enemy (13-2), who was smartly away in the hands of Wayne Lordan in the Requinto EBF Maiden and stayed in front all the way to the line, beating Black Beach by a length and a half.Wachman and Lordan doubled up when 15-8 favourite Curvy pounced late to grab the spoils in the Irish Stallion Farms EBF Fillies Handicap, beating Dragon Fei by half a length.Joseph O'Brien struck twice for his father Aidan, driving 9-2 shot Ivanovich Gorbatov ahead two furlongs out in the Excelebration Maiden and keeping him going strongly, then repeating the trick on Jinsha Lake (11-8 favourite) in the Pour Moi EBF Maiden.