1990 - 1999 to 1999 - 2000 - Known as "B1" Grade 2000 - 2001 to 2001 - 2002 - Known as "C" Grade 2002 - 2003 to 2006 - 2007 - Known as John Adam Shield 2007 - 2008 to 2018 - 2019 - Known as Adams Shield - Jika Reserve 2019 - 2020 - Known as John Adams Shield - "B" Grade |