Scott played senior rugby league for Souths Townsville, where he first represented Queensland in the interstate series in 1979. In 1980, he moved to Brisbane, joining the Easts Tigers. That season, he was selected at fullback for the first ever State of Origin game, despite being in reserve grade at the time.[3]
In 1981, Scott moved to the Wynnum Manly Seagulls, starting at fullback in their BRL's Grand Final victory over Souths Magpies a year later. Despite being the incumbent Queensland fullback for 3 years, Scott missed a place on the 1982 Kangaroo tour of Great Britain and France. He would go on to make his Test debut at fullback for Australia in their second Test match against New Zealand at Lang Park in 1983 after an injury to incumbent Test fullback Greg Brentnall. Despite 25 appearances for his state during his career (including 17 State of Origin appearances), Scott did not represent Australia again. Scott was sent off 18 minutes into Wynnum's semi-final win over Southern Suburbs in 1984, and subsequently missed the grand final.
Scott played for Queensland in the Interstate series and State of Origin series from 1979 to 1987, until losing his place as first choice fullback to former Souths Magpies and then-Canberra Raiders fullback Gary Belcher in 1986, though he was recalled to the team on the wing for Games 2 and 3 in 1987, mostly due to injury to regular Maroons centre and goal kicker Mal Meninga (the first of his 4 broken arms in 2 years). During the series, Scott came in for heavy criticism for his poor goal kicking and handling errors. Scott played his last game for Queensland from the bench in 1987 series exhibition game at Veterans Memorial Stadium in California.[4]