Reeds would start his junior career with the Toronto Marlboros of the OMJHL, playing 18 games with them in 1976–77. He would then move to the Peterborough Petes for the remainder of his junior days, playing with the club from 1977–1980. Reeds won the Memorial Cup with the Petes in 1979. He was drafted by the St. Louis Blues in the 5th round of the 1979 NHL Entry Draft.