sentence: records most successful horse ( 2 wins ) : larbawn -- 1968 , 1969 diamond edge -- 1979 , 1981 topsham bay -- 1992 , 1993 ad hoc -- 2001 , 2003 leading jockey ( 3 wins ) : ron barry -- titus oates ( 1971 ) , charlie potheen ( 1973 ) , the dikler ( 1974 ) leading trainer ( 7 wins ) : fulke walwyn -- taxidermist ( 1958 ) , mill house ( 1967 ) , charlie potheen ( 1973 ) , the dikler ( 1974 ) , diamond edge ( 1979 , 1981 ) , special cargo ( 1984 ) winners weights given in stone and pound ; amateur jockeys indicated by '' mr '' .