Part of Irish team who broke national 4x200m record twice at this year’s European Championship, finishing fifth in final when they lowered it to 7:12.00. He set an Irish 200m SC freestyle record of 1:42.74 at the 2019 Europeans and smashed that with 1:42.18 in December 2020. Jack won gold in 200m freestyle and silver in 100m freestyle at the 2018 World Schools Games. He was a finalist, in 200m Freestyle, at the 2019 European SC Championships. His Irish 200m long course freestyle record of 1:47.10 (December 2020) was a fraction outside Olympic qualification.