Trainer Aidan O'Brien, right, is congratulated after Hydrangea landed the British Champion Fillies and Mares Stakes at Ascot, a victory that means the Irish trainer has equalled the record for 25 Group 1 winners in a season alongside American trainer Bobby Frankel. Alan Crowhurst / Getty Images
Trainer Aidan O'Brien, right, is congratulated after Hydrangea landed the British Champion Fillies and Mares Stakes at Ascot, a victory that means the Irish trainer has equalled the record for 25 GrouShow more
Hydrangea wins British Champion Fillies and Mares Stakes at Ascot to see Aidan O'Brien equal Bobby Frankel's Group 1 record
The bay filly by Galileo, tackling the 2,400-metre distance for the first time, was an impressive winner under Ryan Moore, giving the Irish trainer his 25th Group 1 success of the season