Break teams at past World Championships
| Year | Host | Top Speaker |
| 2010 | Koc (Tur) |
|
| 2009 | Cork (Ire) |
|
| 2008 | Assumption (Thi) |
Sam Block (Cambridge A) |
| 2007 | Uni British Columbia (Can) |
Jess Prince (Oxford A) |
| 2006 | UC Dublin (Ire) |
Rory Gillis (Yale A) & Elizabeth O'Connor (Yale A) |
| 2005 | MMU (Mal) |
Kylie Lane (Monash) |
| 2004 | Nanyang (Sin) |
Alex Croft (Sydney A) |
| 2003 | Stellenbosch (SA) |
Wu Meng Tan (Cambridge) |
| 2002 | Toronto (CA) |
Ewan Smith (Oxford) |
| 2001 | Glasgow (SC) |
Paul Huynor (Sydney) |
| 2000 | Sydney (AU) |
Andy Kidd (Oxford) |
| 1999 | Ateneo (PH) |
Andy Kidd (Oxford) |
| 1998 | Deree (GR) |
Neil Sheldon (Grays Inn) |
| 1997 | Stellenbosch (SA) |
Andy George (Grays Inn) |
| 1996 | Cork (IE) |
Adam Spencer (Sydney U) |
| 1995 | Princeton (US) |
Chitra Jenardhanan (Nanyang) |
| 1994 | Melbourne (AU) |
Ben Richards (Monash) |
| 1993 | Oxford (UK) |
Daniel Mulino (ANU) |
| 1992 | TCD (IE) |
James Hooke (NSW) & Richard Douglas (ANU) |
| 1991 | Hart House Totonto (CA) |
Steve Bibas (Oxford) |
| 1990 | Glasgow (SC) |
|
| 1989 | Princeton (US) |
John Gastil (Swarthmore) |
| 1988 | Sydney (AU) |
Francis Greenslade (Adelaide) |
| 1987 | UCD (IE) |
Michael Hall (Oxford) |
| 1986 | Fordham (US) |
Bruce Meagher (SydneyA) |
| 1985 | Mc Gill (CA) |
Michael ? (Oxford) |
| 1984 | Edinburgh (SC) |
David Celermeyer (Sydney) |
| 1983 | Princeton (US) |
John Geissnell (??) |
| 1982 | Hart House Totonto (CA) |
Stuart Bugg (Auckland) |
| 1981 | Glasgow (SC) |
Andrew Taylor (Hart House) |