[1] He made his debut in the forty-two point win against Fremantle in the opening round of the 2017 season at Domain Stadium.

After going undrafted in numerous drafts went and played for his local club in the Geelong Football Netball League.

[4] In 2013, Stewart was a part of South Barwon's premiership which was led by playing coach and Australian Football Hall of Famer, Matthew Scarlett.

[6] Stewart made his debut for Geelong in the opening round of the 2017 AFL season, in the team's forty-two point win against Fremantle.

Stewart underwent surgery to repair a fractured eye socket he suffered in Geelong's dramatic round 14 win over Fremantle.

In Geelong's round 3 loss to West Coast he received a vote in the AFL Coaches Association Player of the Year award after recording 20 disposals, 13 effective kicks and 3 rebound-50s.

[13] The next week, Stewart would record, 20 disposals, 6 rebounds-50s and 8 marks, one of which was contested in Geelong's round 4 victory over St Kilda.

[16] He would also earn his first All-Australian selection as a back pocket[17] and finished sixth in the Carji Greeves Medal.

Geelong captain Joel Selwood praised Stewart's growth from a mature-age draftee to All-Australian and leader at the club within a span of three years.

[21] After establishing himself as one of the premier defenders in the league, Stewart continued with his great form into the 2020 AFL season.

He recorded 18 disposals in a round 1 loss against Greater Western Sydney when the season began in late March, but under extraordinary conditions imposed on the league as a result of the rapid progression of the coronavirus pandemic into Australia.

[30] In 2020 he was named in the St Joseph's College Team of Champions, recognising the best VFL/AFL players to have attended the school.

It wasn't just about his defensive efforts however; finishing with 27 disposals and six score involvements, he was able to launch several Cats attacks, including one last-quarter goal.

[36] After a career best season, with Stewart averaging 24.0 disposals, 6.1 rebound-50s and a league high 8.9 marks a game, he was awarded his third All-Australian in just five years.

[37] Despite Stewart missing the final few games of the season to injury, he still claimed his maiden Carji Greeves medal.