 Notably dominant sports at GSSS have been the performance of the senior girls' and boys' basketball teams who have won many SOSSA and OFSAA titles, as well as the Lightweight Men's rowing crews, which are always some of the top in the country.The FIRST Robotics Team 1114, Simbotics, at Governor Simcoe is an international championship winning program.They have won the FIRST Robotics championship in 2008, came in second in 2010, and have been champions at many regional events (Greater Toronto Regional 2005-2010; Waterloo Regional 2006-2008, 2010, 2011; Pittsburgh Regional 2010, 2011; Midwest Regional 2008; Great Lakes Regional 2006; Long Island Regional 2004).