In 1966, the Independent College Athletic Conference (ICAC) held its first men's tennis tournament. Formed in 1964, the founding members of the ICAC included Alfred, Clarkson, Hobart/William Smith, Rensselaer, St. Lawrence and Union.
Unlike today's conference tournaments, where teams are seeded and a standard nine-point team match (six singles, three doubles) is contested, the ICAC tournaments consisted singles and doubles brackets, and players scored points for their teams by winning matches and advancing in the bracket.
Hobart won the inaugural tournament with 34 points, with St. Lawrence second with 31 and Rensselaer third with 29.
The following year, St. Lawrence won its first ICAC men's tennis championship, with Bruce Buckalew '68 claiming the singles title and teaming with Brint Coxe '68 to win the doubles crown. St. Lawrence was once again invited to the NCAA Atlantic Coast Championships and finished second.
Cartmill left the men's tennis post prior to the 1969 season to focus on his duties as the athletic director. His teams were 55-21 over his eight seasons at the helm, claiming one NCAA Atlantic Coast Small College Championship and one ICAC title.
But even bigger things were on the horizon for men's tennis at St. Lawrence, with the soon-to-be constructed Augsbury Physical Education Center, and a dominant run in the ICAC on the horizon.