There is a Bow Echo-shaped hole in the remainder of the 2026 Flat season, after the news last week that George Boughey’s unbeaten colt was retired to stud after suffering a training setback. The 2,000 Guineas winner exited the racing stage as the world’s top-rated three-year-old on a mark of 127, just 4lb behind the joint top-rated older horses, Ka Ying Rising and Ombudsman, and with the scope and untapped potential to match or exceed them before the end of the campaign.
A void, though, can also be a vacancy and Constitution River, the second-best three-year-old so far this year, will have an immediate opportunity to step into the breach when he lines up against Ombudsman, in what promises to be a memorable renewal of the International Stakes on the opening afternoon of York’s Ebor festival on Wednesday.