[2] Stanley played as a youth with the Waterloo Wolves in the AHMMPL, before he was selected in the first round, 12th overall in the 2014 OHL Priority draft by the Windsor Spitfires.

[9] Due to his success, Stanley was invited to the Winnipeg Jets training camp before the 2017–18 NHL season, however, he failed to make the roster and was sent back to the OHL.

[10] During the 2017–18 OHL season, Stanley received a two-game suspension for head-checking Akil Thomas during a game against the Niagara IceDogs.

[14] After finally cracking the Jets lineup for the 2020–21 NHL season, Stanley achieved a couple of career milestones in his rookie season; he had his first career fight on March 24, 2021, against Zack MacEwen of the Vancouver Canucks, and would later score his first NHL goal on March 27, 2021, scoring on David Rittich of the Calgary Flames in a 4–2 Jets loss.

[4] Stanley was invited to Canada's 2018 World Junior Ice Hockey Championships training camp but was cut before the final roster was announced.