The IONA debating circuit does not have a firmly fixed recurring calendar of events, but certain substantial debating tournaments hold a relatively permanent status in the year. Each academic year of debating usually begins with the UCL President's Cup, a novice only competition held by University College London. Later in the first academic (autumn) term of UK and Irish debating, are held the Cambridge, Oxford and UCC IVs, as well as the English Leg of the John Smith Memorial Mace. The second and third terms of the University year tend to be given over to smaller IVs and Opens (in which 'composite' teams of individuals from two different academic institutions may enter), but are also host to the more prestigious Middle Temple and Inner Temple IVs. The season usually ends with the European Debating Championships in the early summer.
Listed below are the tournaments which have comprised the 2007/8 IONA Debating Season, with best speakers, and winning institutions and speakers of the tournament. Multiple winners/best speakers have the number of times they achieved that award up to and including that tournament listed in brackets.
Nine speakers have won two competitions so far, they are: Adam Bott, Jonathan Leader Maynard, Luke Wells, Fred Cowell, Rosie Unwin, Dan Bradley, Shengwu Li, Doug Cochran, Daniel Warents and James Dray. Art Ward from University College Cork has won three. Jonathan Leader Maynard and Sam Block have been the best speaker most times so far this season, each doing so on 5 occasions. The Middle Temple, Oxford and Cambridge have won the most competitions, each winning four times so far. Only one institution from outside the UK and Ireland has won a tournament so far in the season, when New Zealanders Christopher Bishop and Sayeqa Islam won the Cambridge IV for Victoria University of Wellington.
As of 6th March 2008, Sam Block is currently the overall highest ranked speaker over the 2007/8 season. Oxford ended the year as the highest ranked institution, counting results from the entire season.
| Competition | Best Speaker | Winning Institution | Winning Speakers | |
| UCL President's Cup | Andrew Chapman | Cambridge | Netan Dogra and Charlotte Thomas | |
| Bristol IV | Sam Block and Bob Nimmo [Tied] | University of London Union | Jonathan Leader Maynard and Patrick Rooney | |
| UCD VP Cup | Brian O'Beirne | TCD Hist | Shane Farragher and John Moriarty | |
| Newcastle IV | Adam Bott | Cambridge | Adam Bott and Sean Koh | |
| Durham IV | Adam Bott (2) | St. Andrews | Chris Hawkins and Rachel Whitbread | |
| Imperial IV | Lewis Iwu | Bristol | Eve Hibbert-Keene and Marc Delahanty | |
| Oxford IV | Kevin Kiley | Cambridge | Sam Block and Adam Bott (2) | |
| Cambridge IV | Shengwu Li | Victoria University of Wellington | Christopher Bishop and Sayeqa Islam | |
| ESU Mace - England | Gavin Illsley | Lincoln's Inn | Usman Ahmed and Hannah Klein | |
| KCL Graveson Cup | Alex Wright | Oxford | Max Kasriel and Dani Quinn | |
| UCC IV | Will Jones | University College Dublin | Susan Connolly and Ross Kelly | |
| Princess Alexandria Cup | Rachel Francis | Durham | Luke Wells and Tabitha Willmer | |
| Birmingham IV | Jonathan Leader Maynard | Galway | Ronan Harrington & Nuala Kane | |
| WUDC | Sam Block (2) | Oxford | Samir Deger-Sen and Lewis Iwu | |
| London IV | Andrew Tuffin | Middle Temple | Craig Morrison and Louisa Nye | |
| TCD IV | Ross Frenet and Will Jones (2) [Tied] | University College Dublin | Maguerite Carter and Ross Maguire | |
| Warwick IV | Jonathan Leader Maynard (2) | Middle Temple | Liz Ford and Rosie Unwin | |
| Inner Temple IV | Sam Block (3) | Middle Temple | Fred Cowell and Ali Dewji | |
| Middle Temple IV | Andrew Marshall | (Composite Team) | Alex Campbell and Andrew Marshall | |
| Strathclyde Cup | Jason Vit | University College Cork | Art Ward and Tiernan Fitzgibbon | |
| Edinburgh Open | Jason Vit (2) | (Composite Team) | Doug Cochran and Art Ward (2) | |
| Cardiff IV | Meredith Prince | University of London Union | Pantellis Palividas and Kallina Basli | |
| Leeds International IV | Dan Bradley | Manchester | Dan Bradley and Dan James | |
| UCL IV | Jonathan Leader Maynard (3) | (Composite Team) | Jonathan Leader Maynard (2) and James Prior | |
| Reading Open | Shengwu Li (2) | (Composite Team) | Shengwu Li and Daniel Warents | |
| LSE Open | Alex Campbell | (Composite Team) | James Dray and Art Ward (3) | |
| Manchester IV | Jonathan Leader Maynard (4) | Durham | Tom Ball and Luke Wells | |
| UL Open | Sayeqa Islam | (Composite Team) | Paul Flynn and Tony Murphy | |
| ESU Mace - Wales | - | Aberystwyth | ||
| Ancients | Stephen Nolan | (Composite Team) | Stephen Nolan and Nuala Kane (2) | |
| Irish National Maidens | Conor McAndrew | (Individual) | Niamh Ní Mhaoileoin | |
| Sheffield Open | Kallina Basli and Dan Bradley [Tied] | Middle Temple | Fred Cowell (2) and Rosie Unwin (2) | |
| Nottingham IV | Dan Bradley (2) | Manchester | Dan Bradley(2) and James Dixon | |
| DCU Open | Sam Block (4) | (Composite Team) | Cormac Early and Andrea Mulligan | |
| Glamorgan Open | Kallina Basli | Queen Mary's | Kallina Basli and Sameer Patel | |
| The Tay Weekend | Danny P McCarthy | (Composite Team) | Mark MacDonald and Oskar Avery | |
| Bristol Open | Jonathan Leader Maynard (5) | Oxford | Shengwu Li (2) and Shang Liew | |
| Southampton Open | Jason Vit (3) | |||
| Durham Open | Sam Block (5) | (Composite Team) | Jason Vit and Dough Cochran (2) | |
| Newcastle Open | Daniel Warents | (Composite Team) | Daniel Warents and Ranald Clouston | |
| Euros | James Dray (2) and Simon Quinn | Oxford | James Dray (2) and Will Jones | |