He joined his father Andrew's rink in 1954 at lead, winning his first Ontario men's championship in 1955.

[5] He won his second Ontario championship in 1958 playing second for the Murray Roberts rink.

[4] In 1965, skipping his own team of Keith Jewett, Ray McGee and Al Claney, Grant won his third Ontario title.

The team represented Ontario at the 1965 Canadian Mixed Championship, finishing in second place, with a 9–1 record.

[1] In his youth, he was interested in the Junior Farmers movement and also enjoyed baseball.