The members of the Queen's Debating Union consistently attend dozens of tournaments every year, and have achieved many notable successes. Queen's team won
Canadian Parliamentary National Championships in 1992, 2002, 2004, 2006, 2015, 2016, and 2023. The Union has won the National Debating Championship a total of six times, the second highest of any Canadian university debate society. Queen's also won the inaugural North American Debating Championship, in 1992. In 1993, Marc Givens of Queen's, part of the winning team the year before, won the top debater in the North American Debating Championship. In 2003 two debaters from the QDU, Nicola Matthews and Michael Saposnik, were semi-finalists at the
World Universities Debating Championship (WUDC), hosted by
Hart House (University of Toronto). In 2004, Kevin Massie and Michael Saposnik were semi-finalists at the WUDC hosted by
Nanyang University in Singapore. In 2006, Laura Kusisto (then QDU President) was the top speaker at the Canadian National Debating Championships. Laura and her partner, Adam Lazier (then QDU critic), were also finalists at the 2006 North American Championships. In 2009, Christine Wadsworth and Sheldon McCormick achieved octo-finalist status at the WUDC in Cork, Ireland. In 2010, Christine Wadsworth and Sheldon McCormick again achieved octo-finalist status at the Koc WUDC in Turkey. In 2013, Kaya Ellis and William Gibson achieved octo-finalist status at the Berlin World's Debating Championship. In 2012, Jake Roth and Kate McNeil won the MacMaster Pro Am Tournament. Robert Embree and Tavish Logan were the champions of the Seagram Invitational. Julia Kirby and Michelle Polster won the Canadian National Championships in 2013, and Mitchell Dorbyk and Will Maidment were the National Novice Champions. Julia Kirby would return to Nationals the next year at McGill University to claim the top speaker title. in 2014 Julia Kirby and Aisha won the North American Women's Debating Championships, Julia would go on to make finals at the same tournament then next two years in a row. Julia Kirby and Julia Milden won the Canadian British Parliamentary Championships in 2015, as well as making semi finals at Yale, and winning the Huber IV. Mitchell Dorbyk and Tavish Logan would make the finals of both the Huber IV and Yale IV as well as making it to the semi finals at the Canadian BP championships in the same year. In 2016, Tavish Logan and Mitchell Dorbyk would go on to win Nationals and Colgate. Ksenia Podvoiskia and Betsy Studholme would then go on to win Nationals in 2017, keeping the trophy at Queen's for another year. Podvoiskia and Samantha Hargreaves would break at WUDC later that year in Mexico City, where they would finish as partial-double-octo-finalists. In 2018, Corey Davidson and Michael Didow won the Leger Cup. Davidson would go on to win the tournament again in 2020, this time alongside Jake Sullivan. In 2019, Addy Rawat won the Canadian British Parliamentary Championships hybriding alongside a member of the University of Western Ontario Debate Society. At the same tournament, the teams of Patrick Cowley and Corey Davidson as well as Jake Sullivan and Grace Li would be semi-finalists. In 2022, Diggory Waddle was the top speaker of the Canadian BP championship. Also in 2022, Diggory Waddle and Nicholas Abernethy won the Hart House IV and made the semi-finals of the Oxford IV, and this team broke at WUDC in 2023. ==Traditions==