He was a key member to their 1964 WANFL premiership win over East Fremantle; a year later, he finished third in the 1965 Sandover Medal behind Barry Cable and eventual winner Bill Walker.
In 1970, he was lured to Victoria to join St Kilda and had an outstanding debut season, finishing equal 5th in the Brownlow Medal count.
In 1971, he finished equal 2nd, missing out on the Brownlow by three votes to former Saints teammate Ian Stewart, then playing with Richmond.
In the 1971 semi-final against Hawthorn, he badly injured his left knee and was unable to play in the Grand Final.
McIntosh married Gwenda Don, a former winner of the Western Australian state singles tennis championships.