| Year | Champion | Grand Finalists | Best Speaker | Best Adjudicator | Adjudication Core | Note |
| 2007 | Seikei | |||||
| 2008 | ICU | |||||
| 2009 | Tokyo | Tokyo Tech | Waseda | |||
| 2010 | Seikei | Keio | Keio, Tokyo | |||
| 2011 | Keio | Hitotsubashi | ||||
| 2012 | ICU | Tokyo | N/A | |||
| 2013 | Tokyo | Sophia | Tokyo | N/A | ||
| 2014 | ICU | Keio | Waseda/Tokyo | Tsuda x2, Keio, Tokyo, Osaka |
