[2][3] He attended St Patrick's College in Ballarat and played for the school's football team in the Herald Sun Shield.
[6][7] In 2022, at the age of 15, Lalor debuted for the Greater Western Victoria Rebels in the Talent League.
He played for Vic Country in the AFL Under-16s National Development Championships, and was named in the All-Australian Team.
[9][10] Lalor continued playing for the Rebels in 2023 and 2024, and signed with Bacchus Marsh's senior team at the end of the 2023 season.
[12][13] However, he suffered a hamstring injury which saw him miss the Talent League grand final against the Sandringham Dragons.