When London won the hotly contested bid to host the 2012 Olympics, Jack saw that as an opportunity to test his table tennis talent on the world's biggest stage. At that time, he was an unknown 10-year-old boy (in 2005) trying to cut his teeth at an obscure tennis youth club somewhere in Widnes. Did he make the cut to fly his country's flag at the tournament? Unfortunately no. However, that did not dent his dream, as he was only 17 then. Four years later, he was selected to participate in the Rio Paralympics, although his name did not feature on the medal stands.
When 2017 came, Jack had yet another excellent opportunity to win an international medal during the US Open. He did not disappoint as he went on to win the final, beating Tommy Urhaug, the winner of the 2012 Paralympics. Before the final, Jack had toppled yet another superstar (World Champion), Valentin Baus, in the semi-final.
Jack's first Paralympic medal came in 2020 in Tokyo, Japan, where he won the Men's Singles Class 5 bronze. A follow-up on this was a gold medal he won at the Commonwealth Games held in Birmingham in 2022.