He has previously played for the Dolphins, the Gold Coast Titans and the Brisbane Broncos in the National Rugby League, and for Queensland in the State of Origin series.

While there, Wallace played junior rugby league with the Sawtell Panthers before signing with the Gold Coast Titans at age sixteen and moving back to Queensland.

He was named in the 2012 Queensland Residents side to take on their New South Wales counterparts in the curtain raiser to game 3 of the 2012 State of Origin series at Suncorp Stadium.

On 10 June 2012, Wallace made his National Rugby League debut in Brisbane's 40–22 round 14 win against the Sydney Roosters at Allianz Stadium.

[citation needed] Wallace made his debut for the Gold Coast Titans in round 1 of the 2017 NRL season in a 32–18 loss to the Sydney Roosters at Cbus Super Stadium.

[citation needed] Wallace played twenty-one games for the Gold Coast in the 2019 NRL season as the club endured a horror year on and off the field finishing last on the table.

[6][7][8][9] Wallace played seventeen games for the Gold Coast in the 2020 NRL season as the club finished ninth on the table and missed out on the finals.

[10] In round 25 of the 2021 NRL season, Wallace was sin-binned for involvement in a scuffle after running in to defend a teammate during the Gold Coast's 44–0 victory over the New Zealand Warriors.

[14] In round 1 of the 2023 NRL season, Wallace made his club debut for the Dolphins in their inaugural game in the national competition, defeating the Sydney Roosters 28–18 at Suncorp Stadium.