Racing 10 December 2022 Detonator Jack delivers at Sandown Sent out as one of the day’s hottest favourites right across Australasia, Kiwi-bred gelding Detonator Jack scored in style at Sandown on Saturday. Racing 01 November 2022 Detonator Jack explosive at Flemington Lightly-tried four-year-old Detonator Jack is a horse on an upward trajectory.