Some major events of KCL
- 1999 – brought under the management of an elected Committee
- 1999 – first All Star match was held at the end of the season
- 2000 – first rule book was written
- 2002 – became a two-division league
Past Champions
Note: Until the year 2000, it was known as Kanto Cup.
- 2017 – Indian Engineers (defeated Samurai)
- 2016 – Samurai (defeated Indian Engineers)
- 2015 – Samurai (defeated Indian Engineers)
- 2014 – Indian Engineers (Indian Tigers conceded the match)
- 2013 – Alpha Q (won by default)
- 2012 – Lalazar (defeated Al Karam)
- 2011 – Season was abandoned due to the Great Kanto earthquake and tsunami
- 2010 – Al Karam (defeated Sri Lankan Lions)
- 2009 – Tokyo Giants (defeated Lalazar)
- 2008 – Tokyo Giants (defeated YC&AC)
- 2007 – Tokyo Giants (defeated Friends)
- 2006 – Tokyo Giants and Friends declared joined winners
- 2005 – Millennium (defeated Tokyo Wombats)
- 2004 – Tokyo Giants (defeated YC&AC)
- 2003 – Tokyo Giants
- 2002 – Tokyo Giants (defeated Millennium)
- 2001 – Tokyo Giants (defeated Friends XI)
- 2000 – Tokyo Giants (defeated Friends XI)
- 1999 – Final not held due to dispute (Friends XI vs. Edogawa Falcons)
- 1998 – Sri Lankan Lions (defeated Friends XI)
- 1997 – Friends XI (defeated Sri Lankan Lions)
- 1996 – Sri Lankan Lions