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 19 April 2022 Undefeated Kiwi-bred on way to Derby dance The apple clearly hasn’t fallen far from the tree as far as NZ-bred stayer and Gr.1 South Australian Derby favourite Detonator Jack is concerned.