From Hamiota, Randy Robertson was a top minor-age player. He was on teams that won provincial championships at Beaver, Bantam, and Midget levels. His Souris team won a silver medal at Western Canadians in 1979 and Robertson was the all star catcher. As a Midget in 1982, he was selected to attend an elite development camp in Edmonton. In 1984, Robertson was selected to attend a try-out for the Team Canada Youth Team. In the MSBL, his career lasted only from 1984 through to 1989, but his lifetime average was .352 and his 25 stolen bases in one season set a League record never to be matched. He was part of a Hamiota Red Sox team that won three MSBL pennants and one championship. In Hamiota, Robertson coached minor ball from 1985 through 1988 and he also ran a camp for elite young players.