Preview gowran park 20th Mar Gowran Park action kicks off at 2.05, with the biggest prize up for grabs going to the winner of the Shamrock Handicap Chase.Grand National candidate Conna Castle shares the burden of top-weight with Central House, but both could find the two-mile trip too sharp at this stage of their careers.Rock Street is making smooth progress and had Battle Axe and Publican behind at Clonmel, but all would be tested by a fully-fit J'y Vole. She hasn't raced for a while, but is a Grade One winner and caught the eye working with the Willie Mullins Cheltenham hopefuls after racing at Leopardstown.Another to return from a break is Arc Bleu, who heads the weights for the Goresbridge Handicap Hurdle.Tony Martin's Northumberland Plate winner needs further nowadays and could be using this a springboard towards better prizes, both on the Flat and in this sphere.Downpatrick winner Road Runner and the hat-trick-seeking Cnoc An Einn have better recent credentials, while Almanyan warmed up for this with a spin on the level at Dundalk.Fathzo finished last in that all-weather event and gets the opportunity to atone for an unfortunate jumping debut in the opening Tetratema 'Son Of The Tetrarch' Maiden Hurdle.Brought down at Leopardstown, his form is nothing flash and market support for either Residencia or Rajik would probably be significant.The Great Oak Maiden Hurdle is an excellent chance for the Willie Mullins-trained Drive On Regardles finally to shed his maiden tag over timber, but his stable companion Orge D'Ete faces a tough task in the Thomastown Beginners Chase, with Hotel Hilamar and Prince Erik in opposition.Royal Blood got closest to the exciting An Siorrac at Fairyhouse and meets nothing of that calibre in the Tetratema Perpetual Cup Hunters Chase.Headford Flyer was a facile winner between the flags last time and has racecourse experience on his side in the concluding Bennettsbridge Flat Race.© www.irish-racing.com