 Walsh helped the IFA XI gain some respectable results, including a 2–0 win against Scotland on 4 October 1947, a 2–2 draw with England at Goodison Park on 5 November 1947 and a 2–0 win against Wales on 10 March 1948.He also played against England in a 6–2 defeat on 9 October 1948.He made his last appearance for the IFA XI on 17 November 1948 in a 3–2 defeat against Scotland.