THE latest World Breeding Federation for Sport Horses (WBFSH) rankings show the Irish Sport Horse studbook in second (eventing) and 14th (show jumping) places. Best of the Irish-breds from the May rankings are The Duke Of Cavan, eighth at the Mitsubishi Motors Badminton Horse Trials for Japanese rider Yoshiaki Oiwa, and Limestone Grey, holding his position again as the leading Irish show jumping horse.