In November 1948, at the age of 18, Benaud was selected for the New South Wales Colts, the state youth team. He scored 47 not out and took 3/37 in an innings win over Queensland. As a specialist batsman, he made his first-class debut for New South Wales at the Sydney Cricket Ground against Queensland in the New Year's match of the 1948–49 season. On a green pitch which was struck by a downpour on the opening day, Benaud's spin was not used by Arthur Morris, and he failed to make an impression with the bat in his only innings, scoring only two. New South Wales were the dominant state at the time, and vacancies in the team were scarce, particularly as there were no Tests that season and all of the national team players were available for the whole summer.