Casey senior.Hi Jinx (1955−1979) was a New Zealand-bred Thoroughbred racemare who won the Centenary Melbourne Cup in 1960, at the odds of 50 to 1.

Hi Jinx was bred by the estate of C.J Casey senior and foaled at Trelawney Stud, Cambridge.

[1] Pride of Kildare was imported into New Zealand by Seton Otway and sired 15 stakes-winners that won 36 stakes races before he was exported to Japan.

Hi Jinx was allotted 7 stone 10 pounds in the Centenary Melbourne Cup and ridden by William A. Smith.

Hi Jinx started at 50/1 and defeated the New Zealand-bred horses Howsie and Ilumquh by a half head, and a neck in 3.23¾.