HDC CONFERENCE SOFTBALL CHAMPIONS
| HDC CONFERENCE SOFTBALL CHAMPIONS | |||
| GIRLS | BOYS | ||
| 1979-80 | Gilman City (9-0) | 1979-80 | North Mercer (8-1) |
| 1980-81 | Gilman City (8-0) | 1980-81 | Winston (8-0) |
| 1981-82 | Winston (8-0) | 1981-82 | Cainsville/Winston (7-1) |
| 1982-83 | Winston (9-0) | 1982-83 | Pattonsburg (8-1) |
| 1983-84 | North Mercer (9-0) | 1983-84 | North Harrison/Pattonsburg (8-1) |
| 1984-85 | North Mercer (9-0) | 1984-85 | North Harrison (9-0) |
| 1985-86 | Grundy County (9-0) | 1985-86 | North Mercer/Pattonsburg (8-1) |
| 1986-87 | Grundy County (9-0) | 1986-87 | North Mercer (9-0) |
| 1987-88 | Grundy County (9-0) | 1987-88 | Pattonsburg (9-0) |
| 1988-89 | Pattonsburg/Winston (7-2) | 1988-89 | Pattonsburg (9-0) |
| 1989-90 | Ridgeway/Winston (7-2) | 1989-90 | Pattonsburg (9-0) |
| 1990-91 | North Harrison (9-0) | 1990-91 | Pattonsburg (9-0) |
| 1991-92 | North Harrison (9-0) | 1991-92 | Winston (8-1) |
| 1992-93 | North Harrison (9-0) | 1992-93 | North Harrison (9-0) |
| 1993-94 | North Harrison (9-0) | 1993-94 | Gilman City (9-0) |
| 1994-95 | North Harrison (9-0) | 1994-95 | Ridgeway (9-0) |
| 1995-96 | North Harrison (9-0) | 1995-96 | Gilman City (8-1) |
| 1996-97 | North Harrison (9-0) | 1996-97 | North Harrison/Pattonsburg (8-1) |
| 1997-98 | NH/Ridgeway/Grundy Co. (8-1) | 1997-98 | North Daviess (7-2) |
| 1998-99 | North Mercer/Tri-County (8-1) | 1998-99 | North Mercer/North Daviess (8-1) |
| 1999-00 | North Mercer (9-0) | 1999-00 | Pattonsburg (9-0) |
| 2000-01 | North Harrison (9-0) | 2000-01 | Tri-County/Grundy County (8-1) |
| 2001-02 | North Harrison (9-0) | 2001-02 | Grundy County (9-0) |
| 2002-03 | North Harrison/North Daviess (9-1) | 2002-03 | Grundy County (10-0) |
| 2003-04 | North Harrison (10-0) | 2003-04 | Newtown-Harris/North Mercer (8-2) |
| 2004-05 | North Harrison (10-0) | 2004-05 | North Harrison (9-1) |
| 2005-06 | Cainsville/North Mercer (8-1) | 2005-06 | North Harrison (7-1) |
| 2006-07 | North Mercer/North Harrison (7-1) | 2006-07 | Tri-County (7-1) |
| 2007-08 | Newtown-Harris (9-0) | 2007-08 | NH/Newtown-Harris/P-Burg (7-2) |
| 2008-09 | North Harrison/Newtown-Harris (7-1) | 2008-09 | Pattonsburg (8-0) |
| 2009-10 | Newtown-Harris (10-0) | 2009-10 | Tri-County (7-1) |
| 2010-11 | Newtown-Harris (10-0) | 2010-11 | Newtown-Harris (8-0) |
| 2011-12 | North Harrison (9-0) | 2011-12 | Tri-County (7-0) |
| 2012-13 | Pattonsburg (9-0) | 2012-13 | North Mercer |
| 2013-14 | North Harrison (8-0) | 2013-14 | Winston (6-0) |
| 2014-15 | North Harrison (7-0) | 2014-15 | Winston (6-0) |
| 2015-16 | North Harrison (7-0) | 2015-16 | Winston (6-0) |
| 2016-17 | North Harrison (5-0) | 2016-17 | The Shamrocks competed in Spring Baseball |
| 2017-18 | North Harrison (5-0) | ||
| 2018-19 | North Harrison (5-0) | ||
| 2019-20 | North Harrison (6-0) | ||
| 2020-21 | North Harrison (6-0) | ||
| 2021-22 | NORTH HARRISON WILL COMPETE IN THE GRC | ||