D.o.B: March 23, 1996
Just as his elder brother Chris did, Jack will launch his top flight British racing career as a Poole Pirate having spent the previous two campaigns in the second tier with Plymouth. Dubbed as one half of the new Turbo Twins (Brady Kurtz being the other) Jack will keep the Holder name at Poole as Chris's factored average denied him a place in the Pirates side for 2017.
Speedway fans were treated to glimpse of Jack's ability when he stormed to a second place in his maiden GP ride in October (2016) as a reserve in the Melbourne GP and he carries a 7.16 starting average into the season. Jack has agreed to 'double-up' with SGB Championship club Peterborough for 2017.