The congress event started in 1986 but was preceded by a teams event on the same weekend which started in 1979. The Congress event was initially sponsored by the Wessex Building Society.
Last updated : 21st November 2023
| Year | Winners |
| 1979 | Tony Forrester, Raymond Brock, Graham Kirby, John Armstrong |
| 1980 | Ian Morris, Mike Clack, Franco Pietri, David Burn |
| 1981 | Tony Forrester, Raymond Brock, Roman Smolski, John Armstrong |
| 1982 | Tony Forrester, Raymond Brock, Roman Smolski, John Armstrong |
| 1983 | Mike Ash, Bob Ferrari, John Holland, Boris Ewart |
| 1984 | Patrick Shields, Derek Rue, Joe Angseesing, Andrew Kambites |
| 1985 | Not known |
| 1986 | Martin Pool, Pauline Pool, Mike Kingsland, S Whitehouse |
| 1987 | Antonina McNeice (Bobby), Graham Bobby, Nick Perceval-Price, Doug Naismith |
| 1988 | Joe Sivayogan, Neil Rosen, Gerald Tredinnick, Stuart Tredinnick |
| 1989 | Gary Martin, Ian Popplestone, Adrian Thomas, Filip Kurbalija |
| 1990 | Paul Hackett, Brian Cornelius, Brian Senior, Jason Hackett |
| 1991 | Jeremy Dhondy, Ian Pagan, Heather Dunstan (Dhondy), Steve Barnfield |
| 1992 | Mike Durrant, Helen Chambers, Paul Grunstein, Liz Ridd |
| 1993 | Mike Pownall, Martin Hill-Jones, Filip Kurbalija, Adrian Thomas |
| 1994 | Brian Callaghan, David Burn, Joe Fawcett, Gillian Salt (Fawcett) |
| 1995 | Nick Doe, Tim Stanley-Clamp, Richard Harris, Stuart Nelson |
| 1996 | Nigel Freake, Matthew Bingham, Paul Fegarty, Anne Catchpole |
| 1997 | Chris Jagger, Giles Woodruff, Alan White, John Young |
| 1998 | Ian Pagan, Lizzie Godfrey, Sally Anoyrkatis, Harry Anoyrkatis |
| 1999 | Peter Goodman, Mike Pownall, Jeremy Dhondy, Filip Kurbalija |
| 2000 | Peter Goodman, Mike Pownall, Jeremy Dhondy, Filip Kurbalija |
| 2001 | Andrew McIntosh, Jack Mizel, David Bakhshi, Alexander Allfrey |
| 2002 | Frances Hinden, Jeffrey Allerton, Peter Lee, Bob Rowlands |
| 2003 | Tim Green, Penny Macleod, Tim Rees, Jane Green |
| 2004 | Mike Walsh, Milos Sudjic, Olivia Woo, Alan Woo |
| 2005 | Frances Hinden, Jeffrey Allerton, Peter Lee, Bob Rowlands |
| 2006 | David Gold, Manny Marks, Martin Hoffman, Ross Harper |
| 2007 | Mike Tedd, Filip Kurbalija, Jeremy Dhondy, Ian Pagan |
| 2008 | Michael Byrne, Simon Cope, Andrew Murphy, Bryony Youngs (picture) |
| 2009 | Catherine Jagger, Chris Jagger, Ian Pagan, Jonathan Mestel (picture) |
| 2010 | Janet de Botton, Thor Erik Hoftaniska, Nick Sandqvist, David Burn |
| 2011 | Marion Robertson, Simon Cope, Sally Brock, Nicola Smith (picture) |
| 2012 | Stefan Lindfors, Rob Lawy, Alex Hogg, Alex Maddocks (picture) |
| 2013 | Ben Green, John Holland, Simon Cope, Gunnar Hallberg (picture) |
| 2014 | Frances Hinden, Jeffrey Allerton, Mike Scoltock, Paula Leslie (picture) |
| 2015 | David Jones, Garry Watson, Malcolm Oliver, Julian Gibson (picture) |
| 2016 | Barry Wennell, Beth Wennell, Gabriel Hearst & James Bond (picture) |
| 2017 | Stephen Kennedy, Ben Norton, Michael Byrne & Andrew Murphy (picture) |
| 2018 | Shahzaad Natt, Nathalie Shashou, Nick Sandqvist, & Stefano Tommasini (picture) |
| 2019 | David Gold, Catherine Seale, Phil King & Kevin Castner (picture) |
| 2020 | Not held due to Covid |
| 2021 | Sam Anoyrkatis, Harry Anoyrkatis, Venetia Anoyrkatis & Bjorn Ahl |
| 2022 | Not held |
| 2023 | Simon Cope, Diana Nettleton, Andrew McIntosh & Sara Moran |