Ohio Athletic Conference

The Ohio Athletic Conference is a Division-III conference formed in 1902. Denison, Kenyon, Oberlin, Ohio Wesleyan, and Wooster all left the OAC to form the North Coast Athletic Conference after the 1983-1984 school year.

2026 Schools

• Baldwin Wallace University
• Capital University
• Heidelberg University
• Marietta College
• University of Mount Union
• Muskingum University
• Ohio Northern University
• Otterbein University
• Wilmington College

Conference Baseball Champions

Year	Regular Season	Tournament	notes
1949	Ohio Northern University	--
1950	Records incomplete
1951	Records incomplete
1952	Muskingum College	--
1953	Records incomplete
1954	University of Akron	--
1955	Wittenberg University	--
1956	Marietta College	--
1957	Wittenberg University	--
1958	Ohio Wesleyan University	--
1959	Wittenberg University	--
1960	Wittenberg University	--
1961	Ohio Wesleyan University	--
1962	Hiram College	--
1963	Wittenberg University	--
1964	Mount Union College	--
1965	Ohio Wesleyan University	--
1966	Wittenberg University	--
1967	Hiram College	--
1968	Wittenberg University	--
1969	Ohio Wesleyan University	Ohio Wesleyan University
1970	Mount Union College (North) Marietta College (South)	rain
1971	College of Wooster (North) Marietta College (South)	Marietta College
1972	Baldwin-Wallace College (North) Marietta College (South)	Marietta College
1973	Baldwin-Wallace College (North) Marietta College (South)	Marietta College
1974	Ohio Northern University (North) Otterbein College (South)	Ohio Northern University
1975	Ohio Northern University (North) Marietta College (South)	Marietta College	Marietta runner-up in Division II CWS
1976	Ohio Northern University (North) Marietta College (South)	Ohio Northern University
1977	College of Wooster (North) Marietta College (South)	Marietta College
1978	Wooster / Baldwin-Wallace (North) Marietta College (South)	Marietta College	Marietta runner-up in Division III CWS
1979	College of Wooster (North) Marietta College (South)	Marietta College
1980	Ohio Northern University (North) Marietta College (South)	Marietta College	Marietta runner-up in Division III CWS
1981	College of Wooster (North) Marietta College (South)	Marietta College	Marietta wins Division III CWS
1982	Ohio Northern University (North) Otterbein College (South)	Ohio Northern University
1983	Ohio Northern University (North) Otterbein College (South)	Ohio Northern University	Marietta wins Division III CWS
1984	Ohio Northern University (North) Marietta College (South)	Marietta College	Marietta runner-up in Division III CWS
1985	Baldwin-Wallace College	Baldwin-Wallace College	Marietta runner-up in Division III CWS
1986	Baldwin-Wallace College	Marietta College	Marietta wins Division III CWS
1987	Marietta College	Marietta College
1988	Marietta / Baldwin-Wallace	Marietta College
1989	Marietta College	Otterbein College
1990	Marietta College	Marietta College
1991	Marietta College	Marietta College
1992	Marietta College	Marietta College
1993	Marietta College	Marietta College
1994	Marietta College	Marietta College
1995	Marietta College	Marietta College
1996	Marietta College	Marietta College
1997	Marietta College	Marietta College
1998	Marietta College	Marietta College
1999	Marietta College	Marietta College
2000	Marietta College	Marietta College
2001	Marietta College	Marietta College	Marietta runner-up in Division III CWS
2002	Marietta College	Marietta College	Marietta runner-up in Division III CWS
2003	Heidelberg College	Otterbein College
2004	Marietta College	Heidelberg College
2005	Marietta College	Otterbein College
2006	Otterbein College	Otterbein College	Marietta wins Division III CWS
2007	Heidelberg / Marietta	Otterbein College
2008	Heidelberg College	Heidelberg College
2009	Heidelberg College	Heidelberg College
2010	Heidelberg College	Heidelberg College
2011	Marietta College	Marietta College	Marietta wins Division III CWS
2012	Marietta College	Marietta College	Marietta wins Division III CWS
2013	Marietta College	University of Mount Union
2014	Marietta College	John Carroll University
2015	Heidelberg College	Marietta College
2016	Otterbein College	Marietta College
2017	University of Mount Union	Otterbein College
2018	Otterbein College	Baldwin Wallace University
2019	Baldwin-Wallace / Heidelberg	Otterbein College
2020	Season cancelled in March
2021	University of Mount Union	Marietta College
2022	Marietta College	Marietta College
2023	Baldwin Wallace University	John Carroll University
2024	Baldwin Wallace University	Baldwin Wallace University
2025	University of Mount Union	Baldwin Wallace University
2026	University of Mount Union	Baldwin Wallace University