| Year | Location | # | Winner(s) | Score | |
| 1st | 1956 | Montreal | 88 | Larry Evans, William Lombardy | 8.0/10 |
| 2nd | 1958 | Winnipeg | 44 | Elod Macskasy | 9.0/10 |
| 3rd | 1960 | Kitchener | 40 | Anthony Saidy | 8.0/10 |
| 4th | 1962 | Ottawa | 47 | Laszlo Witt | 9.0/9 |
| 5th | 1964 | Scarborough | 76 | Pal Benko | 8.5/10 |
| 6th | 1966 | Kingston | 116 | Larry Evans | 9.0/10 |
| 7th | 1968 | Toronto | 164 | Bent Larsen | 10.5/11 |
| 8th | 1970 | St. John's | 55 | Bent Larsen | 9.5/10 |
| 9th | 1971 | Vancouver | 156 | Boris Spassky, Hans Ree | 9.0/11 |
| 10th | 1973 | Ottawa | 232 | Duncan Suttles | 9.0/11 |
| 11th | 1974 | Montreal | 636 | Ljubomir Ljubojevic | 10.0/11 |
| 12th | 1975 | Calgary | 215 | Leonid Shamkovich | 9.0/10 |
| 13th | 1976 | Toronto | 408 | Nick de Firmian, Lawrence Day | 8.5/10 |
| 14th | 1977 | Fredericton | 164 | Jan Green-Krotki | 8.5/10 |
| 15th | 1978 | Hamilton | 185 | Gyula Sax | 9.0/11 |
| 16th | 1979 | Edmonton | 135 | Abe Yanofsky | 8.5/10 |
| 17th | 1980 | Ottawa | 212 | Lawrence Day | 8.5/10 |
| 18th | 1981 | Beauport | 148 | Igor Ivanov | 9.5/10 |
| 19th | 1982 | Vancouver | 148 | Gordon Taylor | 8.5/10 |
| 20th | 1983 | Toronto | 330 | Kevin Spraggett, Bozidar Ivanovic | 8.0/10 |
| 21st | 1984 | Ottawa | 146 | Igor Ivanov, Dave Ross, Denis Allan, Brett Campbell | 8.0/10 |
| 22nd | 1985 | Edmonton | 91 | Igor Ivanov, Brian Hartman | 8.5/10 |
| 23rd | 1986 | Winnipeg | 146 | Artur Yusupov, Viktor Kupreichik | 8.0/10 |
| 24th | 1987 | Toronto | 208 | Kevin Spraggett | 8.0/10 |
| 25th | 1988 | Scarborough | 201 | Lawrence Day | 8.5/10 |
| 26th | 1989 | Edmonton | 181 | Vladimir Tukmakov | 9.5/10 |
| 27th | 1990 | Edmundston | 59 | Georgi Timoschenko | 8.5/10 |
| 28th | 1991 | Windsor | 120 | Walter Browne | 9.0/10 |
| 29th | 1992 | Scarborough | 254 | Alexei Barsov, Bryon Nickoloff | 8.5/10 |
| 30th | 1993 | London | 128 | Kevin Spraggett | 8.5/10 |
| 31st | 1994 | Winnipeg | 187 | Vladimir Tukmakov | 9.0/10 |
| 32nd | 1995 | Toronto | 303 | Kevin Spraggett, Eduardas Rozentalis, Ron Livshits, Bryon Nickoloff, Deen Hergott | 8.0/10 |
| 33rd | 1996 | Calgary | 147 | Kevin Spraggett | 9.0/10 |
| 34th | 1997 | Winnipeg | 188 | Julian Hodgson | 8.5/10 |
| 35th | 1998 | Ottawa | 223 | Dimitry Tyomkin, Michael Oratovsky, Evgeny Prokopchuk, Kevin Spraggett | 8.0/10 |
| 36th | 1999 | Richmond | 204 | Kevin Spraggett, Georgi Orlov | 9.5/11 |
| 37th | 2000 | Edmonton | 192 | Jonathan Rowson, Joel Benjamin, Kevin Spraggett | 8.0/10 |
| 38th | 2001 | Sackville | 169 | Anthony Miles, Larry Christiansen | 9.0/10 |
| 39th | 2002 | Montreal | 326 | Jean-Marc Degraeve, Pascal Charbonneau, Jean Hébert | 8.0/10 |
| 40th | 2003 | Kapuskasing | 141 | Alexander Moiseenko | 8.0/10 |
| 41st | 2004 | Kapuskasing | 124 | Dimitry Tyomkin, Alexander Moiseenko | 8.0/10 |
| 42nd | 2005 | Edmonton | 222 | Alexei Shirov, Vassily Ivanchuk, Victor Bologan, Mark Bluvshtein, S.R. Chowdhury | 8.0/10 |
| 43rd | 2006 | Kitchener | 198 | Abhijit Kunte, Walter Arencibia U2000: John Upper; U1600: Alexandra Botez | 7.0/9 |
| 44th | 2007 | Ottawa | 280 | Xiangzhi Bu | 8.0/10 |
| 45th | 2008 | Montreal | 325 | Alexander Moiseenko, Victor Mikhalevski, Matthieu Cornette, Eduardas Rozentalis B: Jean Hébert; C: Omaray M. Shah; D: Jonathan Turcotte; E: Jacques Deroneth | 6.5/9 |
| 46th | 2009 | Edmonton | 202 | Mark Bluvshtein, Edward Porper | 7.5/9 |
| 47th | 2010 | Toronto | 265 | Luke McShane | 8.0/9 |
| 48th | 2011 | Toronto | 277 | Walter Arencibia, Joel Benjamin, Dejan Bojkov U2000: John Doknjas, Palmer Jordan, Sam Haziprodromu, Alexander Strugach U1600: Rodrigo Oliveira | 7.0/9 |
| 49th | 2012 | Victoria | 155 | Eric Hansen U2000: Darren Bates, Robert North, Paul Leblanc, Yifei Han; U1600: Kajan Thanabalachandran, Kristijan Gjorgjevik | 7.5/9 |
| 50th | 2013 | Ottawa | 178 | Nigel Short, Eric Hansen | 7.5/9 |
| 51st | 2014 | Montreal | 402 | Ehsan Ghaem Maghami, Robin van Kampen, Sergey Tiviakov B: Jean Hébert; C: Thiago Pinho, Paul Weston;D: Sylvain Dumoulin E: Julia Tsukerman, Michael Hollander | 6.5/9 |
| 52nd | 2016 | Windsor | 125 | Gergely Antal U2000: Jafar Faraji; U1600: John Young, Dora Koltai U1200: Kevin Cui | 7.5/9 |
| 53rd | 2017 | Sault Ste. Marie | 137 | Razvan Preotu, Aman Hambleton U2200: Chike (Jude) Aniunoh; U1800: Joey Orozco; U1400: Kate Jiang | 6.5/9 |
| 54th | 2018 | Quebec City | 153 | Bitan Banerjee, Raymond Kaufman U2000: William Bremner; U1800: Yun Hong (Kevin) Li; U1600: David Gauthier, Arnaud Pelletier; U1400: Jessica Qian | 7.0/9 |
| 55th | 2019 | Regina | 84 | Alexander Cherniaev: U1800: Matthew He | 9.0/9 |
| 56th | 2022 | Hamilton | 235 | Shawn Rodrigue-Lemieux, Nikolay Noritsyn | 7.5/9 |
| 57th | 2023 | Calgary | 183 | Alexei Shirov; U1600: Jeffrey Liu | 8.5/10 |