The closing contest was ultimately run without incident and after investigating the turf, a broken drain was identified as the cause of the disruption. "How you would not race in any race at Cheltenham is beyond me," Brennan said on At The Races' Unbridled podcast. View 2 Images Paddy BrennanBrennan added: "Jon Pullin is getting these questions hit at him, like there's a barrister coming at him with all these questions. Pullin confirmed earlier this week that a broken drain was what caused the hole at the course. “Working closely with external drainage specialists, we have identified that the most likely cause was a broken drain located directly beneath the hole.