The Oxford Open (OOT) has been an open tournament written and hosted by Oxford. Its first four iterations were all won by teams from the University of Chicago, which flew out every year to compete. Two of these (2014 and 2015) featured Chicago v. Chicago finals. The earlier of these results led to a heated exchange on Facebook among various members of the British quizzing community, in part because the second-place team was led by then-freshman Morgan Venkus, partially due to this dominance on the watered down difficulty of the science. Since 2017, Oxford Open has been won by British teams. The tournament is usually attended by a mixture of quizbowlers, both student teams and alumni, and teams with players from the wider British Quiz circuit, many of whom have been successful at tournaments such as the International Quizzing Association European Champions.
Since 2021, Oxford has combined forces with Cambridge to produce a tournament known as the Cambridge and Oxford Open Tournament (COOT).
|2012||Chicago: Marshall Steinbaum, Tyler Smith, Sam Bailey, Shantanu Jha||MUESLI: Stephen Pearson, Gareth Aubrey, Nick Mills, Reuben Roy||Dakkas Cowboys: Bruce Arthur, Dallas Simons, Ted Gioia, Stephen Liu||Kyle Haddad-Fonda||25|
|2014||Chicago A: John Lawrence, Ben Gammage, Charles Tian, Michael Coates||Chicago B: Morgan Venkus, Doug Graebner, Luke Bretscher, Vinay Bhaskara||Kyle Haddad-Fonda, Joey Goldman, Chris Savory, Ewan MacAulay, George Corfield||26|
|2015||Chicago A: John Lawrence, James Lasker, Kay Li, Jason Zhou||Chicago B: Chris Ray, Max Schindler, Marianna Zhang, Athena Kern||Broken Hearts A: Ian Bayley, Mark Grant, Olav Bjortomt, Sean Carey||Kyle Haddad-Fonda, Joey Goldman, Charlie Clegg, Ewan MacAulay, George Corfield, Oliver Clarke, Peter Berry, Daoud Jackson||24|
|2016||Chicago A: John Lawrence, James Lasker, Alston Boyd, Marianna Zhang||Oxford Forever: Edmund Dickinson, Zachary Vermeer, Luke Pitcher, Alex Bubb||Chicago B: Chris Ray, Kai Smith, Athena Kern, Jason Zhou||Oliver Clarke, George Corfield, Charlie Clegg, Joey Goldman, Daoud Jackson, Ewan MacAulay, Chris Stern, Spencer Weinreich||24|
|2017||Tempted by what we know to be gauche: Ewan MacAualay, Joey Goldman, Alex Bubb, Henry Edwards||Forge Masters: Jonathan Elliott, Hugh Bennett, Hugh Binnie, Tristram Cole||Cambridge A: Evan Lynch, Oliver Sweetenham. Julian Sutcliffe, Ellie Warner||Oliver Clarke, George Corfield, Charlie Clegg, Daoud Jackson, Chris Stern, Spencer Weinreich||24|
|2018||Cambridge A: Jason Golfinos, Ewan MacAulay, Joseph Krol, Ephraim||Oxford 5ever: Joey Goldman, Edmund Dickinson, Charlie Clegg, Oliver Clarke||Chicago B: Kai Smith, Matthew Lehmann, Samir Khan, Halle Friedman||George Charlson, Alex Peplow, Daoud Jackson, Jacob Robertson, Leonie Woodland||23|
|2019||Shrimps are Pretty Rich: Ewan MacAulay, Daoud Jackson, Joey Goldman, Ben Salter||Cambridge: Joseph Krol, Marius Posa, Lillian Crawford, Nick Clanchy||Chicago A: Kai Smith, Matthew Lehmann, Alston Boyd, Grant Li||Isaac Brown, George Charlson, Oliver Clarke, Claire Jones, Alexander Peplow, Jacob Robertson, Leonie Woodland, Laura Cooper||24|
|2020||Vitalijs Uncensored: Evan Lynch, Daoud Jackson, Ewan MacAulay, Vitalijs Brejevs||Broken Hearts: Mark Grant, Ian Bayley, Tris Cole||Cambridge A: Joseph Krol, Boyang Hou, Molly O'Gorman, Dan Lawson||George Charlson, Oliver Clarke, Alex Hardwick, Claire Jones, Alexander Peplow, Jacob Robertson||22|