John Constable enters Triumph picture The former Aidan O'Brien trained John Constable has been introduced at odds of 25/1 for the Triumph Hurdle at Cheltenham by Boylesports following his debut success over hurdles at Ludlow this afternoon. The Navan maiden winner was an easy to back 6/1 chance on first start for Evan Williams but belied those odds with a smooth success in the hands of Paul Moloney. The four-year-old son of Montjeu was an above average sort on the flat when trained in Ireland. He finished in the money on eight of his eleven starts and achieved a rating of 94.