[3] At the first Futures Cup, the 2022 Futures Cup held in May in Plymouth, England, Passmore won the bronze medal in the 3 metre springboard with a score of 355.75 points, which was over 100 points behind gold medalist Yona Knight-Wisdom of Jamaica.

[2] In July, he started his competition at the 2022 European Junior Diving Championships off with a bronze medal in the 1 metre springboard, achieving a final score of 455.00 points.

[6] For the 1 metre springboard at the 2022 World Junior Diving Championships, held starting in November in Montreal, Canada, Passmore scored a total of 453.60 points, winning the silver medal only 16.10 points behind gold medalist Matteo Santoro.

[7][8] His medal was the first of any rank won by a diver representing Ireland at a World Junior Diving Championships.

[8][9] The following day, he ranked first in the preliminaries of the 3 metre springboard with a score of 529.65 points and qualified for the final.