| Academic Year | Host Institution | National Champion | Finalist Teams | Top Speaker | Topic of Open Grand Final |
| 2026 | University of Pennsylvania | Clement Tsao & Karthik Palakodeti, University of Pennsylvania | Maria Xu & Stephanie Chen, Harvard University; Eamin Ahmed & Soren Jensen, Cornell University; Ollie Braden & Rahul Kalavagunta, Princeton University | Elizabeth Li, Stanford University |
This house believes that it would have been in Mexico’s interests for the Mexican government to pursue industrial policy followed by gradual liberalization rather than join NAFTA. |
| 2025 | Dartmouth College | Tejas Subramaniam & Elizabeth Li, Stanford University | Manav Mittal & Manuel Machorro, Bates College; Ambika Grover & Stephanie Chen, Harvard University; Molly Callaghan & Catherine Liu, Harvard University | Tejas Subramaniam, Stanford University | This house believes that the United States should dissolve its non-nuclear offensive military capabilities |
| 2023 | Hobart and William Smith Colleges | Jacquelynn Lin & Xiao-ke Lu, Princeton University | Matt Mauriello & Annushka Agarwal, Harvard University; Muzamil Godil & Justin Wu, Johns Hopkins University; Kaustubh Jain & Sheryar Ahmad, Princeton University | Xiao-ke Lu, Princeton University | TH, as a moderate coalition of Democratic members of the US House of Representatives, would support a moderate Republican for Speaker of the House |
| 2022 | Hobart and William Smith Colleges | Arthur Lee & Tejas Subramaniam, Stanford University | Jane Mentzinger & Greg Weaving, Princeton University; Matt Song & Michael Ning, Yale University; Rohan Kapoor & Benny Nicholson, University of Chicago | Greg Weaving, Princeton University & Tejas Subramaniam, Stanford University | THW abolish peer review |
| 2021[a] | University of Pennsylvania | Canceled |
| 2020[b] | Hobart and William Smith Colleges | Xiao-ke Lu & Greg Weaving, Princeton University | Jay Gibbs & Jaewan Park, University of Chicago; Devesh Kodnani & Brian Li, University of Chicago; Preston Johnston & Shreyas Kumar, Princeton University | Anish Welde, University of Pennsylvania | This house believes that it is in the interest of the US to take measures to significantly reduce its economic ties and connections with China (e.g. reducing investment and redirecting trade, and shifting away from yuan in its reserve currency basket) |
| 2019 | Clemson University | Jenny Jiao & Salil Mitra, Duke University | Aditya Dhar & Michel Nehme, Harvard University; Ko Lyn Cheang & Lorenzo Pinasco, Yale University; Harry Meadows & Abby Westberry, Bates College | Ko Lyn Cheang, Yale University | |
| 2018 | Stanford University | Vedant Bahl & Mars He, Harvard University | Benjamin Muschol & Will Smith, Northeastern University; Harry Elliott & Bobbi Leet, Stanford University; William Arnesen & Charlie Barton, Yale University | Harry Elliott, Stanford University | This house regrets the popularization of the idea that one's identity should determine the credibility of the one's perspective on social justice issues |
| 2017 | Regis University & University of Denver | Archie Hall & Alex Wu, Harvard University | David Slater & Elana Leone, Stanford University; Harry Elliot & Bobbi Leet, Stanford University; Daniel Stoyell & Rebecca Blair, Cornell University | Zoë Seaman-Grant, Bates College | This house would immediately cease all financial and military support for the war on drugs, deprioritize domestic drug enforcement, and re-purpose all funds currently spent on those ends on reparations for those negatively affected by current policy |
| 2016 | Morehouse College | Drew Latimer & Jeremy Chen, Tufts University | Dhruva Bhat & Danny DeBois, Harvard University; Evan Lynyak & Henry Zhang, Yale University; Harry Elliott & Taahir Munshi, Stanford University | Harry Elliott, Stanford University | This house believes that until the Democratic Party establishment commits to fielding and funding African-Americans as candidates at a rate proportional to their share of the overall party membership - roughly 1 in 4 at present - African-Americans should boycott the vote |
| 2015 | University of Alaska, Anchorage | Tony Nguyen & Edwin Zhang, Yale University | Tiffany Keung & Alex Mechanick, Brown University; Fanele Mashwama & Bo Seo Harvard University; Rodjé Malcolm & Emanuel Waddell, Morehouse College | Matt Summers, Bates College | This house would, as the US government, grant amnesty to all undocumented immigrants living in the United States on the sole condition that they have not been convicted of a violent criminal offense |
| 2014 | Purdue University | Taylor Blackburn & Jac Stewart, Bates College | Kirat Singh & Srinath Reddy, Cornell University; Colin Etnire & Krikor Kouyoumdjian, Loyola Marymount University; Michael Barton & Sam Ward-Packard, Yale University | Michael Barton, Yale University & Sam Ward-Packard Yale University | This House regrets the continuation of NATO after the dissolution of the Soviet Union |
| 2013 | University of La Verne | Ben Kornfeld & Sam Ward-Packard, Yale University | Chris Axtman & Megan Towles, Carroll College; Colin Etnire & Dearv O’Crowley Loyola Marymount University; Emma Pierson & Andrew Suciu, Stanford University | Ben Kornfeld, Yale University |
| 2012[c] | Willamette University | Tournament Champions: Christine Simpson & Michael O’Dwyer, University College Dublin; National Champions: Buzz Klinger & Will McConnell, Hobart and William Smith Colleges | Maxwell Dovala & Kate Falkenstein, Yale University; Kamya Chandra & Nipun Mahajan, St. John's University | Sam Ward-Packard, Yale University | This House believes that coming cuts in US military spending will make the world a better place |
| 2011 | University of Vermont | Cormac Early & Jo Box, Harvard University | Sarah Carpenter & Amie Stanley, University of Alaska, Anchorage; Maxwell Dovala & Kate Falkenstein, Yale University; Angela Kintominas & David Maher[d], University of New South Wales | Cormac Early, Harvard University |
| 2010 | Regis University & University of Denver | Charlie Sprague & Jesse Katz-Blumenthal, Claremont Colleges | Aaron Baker & Lindsay Bing, Portland State University; Alex Campbell & Anish Mitra, Stanford University; Nate Blevins & Naz El-Khatib, Yale University | Colin Haughey, University of Alaska, Anchorage |
| 2009 | University of Vermont | Lewis Bollard & Ben Belser, Harvard University | Mike Aguilera & Kevin Kiley, Loyola Marymount University; Robert Embree & Monica Ferris[d], Hart House; Doug Cochran & Daniel Warrents, Middle Temple | Daniel Warrents, Middle Temple |
| 2008 | Portland State University | Alexander Schwab & Kevin Kiley, Loyola Marymount University | Charles Sprague & Kari Wohlschlegel, Claremont Colleges; Rob Ruiz & Thomas Allison, University of La Verne; Michael Imeson & James Kilcup, Seattle University | Kari Wohlschlegel Claremont Colleges |
| 2007 | Claremont McKenna College | Josh Martin & Rob Ruiz, University of La Verne | Matt Contreras & Courtney Crooks, Loyola Marymount University; Dan Adler & Eric Sanelle, Portland State University; Brian Kettles and Julie Liztwan[d], University of Alberta & University of Calgary | Julia Liztwan, University of Alberta |
| 2006 | Claremont McKenna College | Samuel Myat San & Alexander Schwab, Harvard University | Tom Lassen & Chris Kolerok, University of Alaska, Anchorage; Adam Chilton & David Denton, Yale University, Chris Jones & Monica Ferris[d], Athabasca University | David Denton, Yale University |
| 2005 | Claremont McKenna College | Michael Rose & Tom Lassen, University of Alaska, Anchorage | Chris Kolerok & Rose Helens-Hart, University of Alaska, Anchorage; Martin Pinnes & Daniel Streim, Colgate University; Ashish Sinha & Michael Ferris[d], University of British Columbia | Josh Martin, University of La Verne |