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Akron City Series
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Blanchard Valley Conference
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Buckeye Border Conference
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Buckeye 8
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Central Catholic League
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Chagrin Valley Conference
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Columbus City League
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Dayton City League
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East Central Ohio League
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Federal League
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Firelands Conference
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Greater Cleveland Conference
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Green Meadows Conference
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Knox Morrow Athletic Conference
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Lake Erie League
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Mahoning Valley Athletic Conference
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Miami Valley League (Begins Fall 2019)
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Mid Buckeye Conference
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Muskingum Valley League
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North Coast League
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Northeast 8 Athletic Conference (Begins Fall 2018)
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Northeastern Athletic Conference
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Northern Buckeye Conference
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Northern Lakes League
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Ohio Capital Conference
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Ohio Valley Conference
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Pioneer Valley Conference
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Portage Trail Conference
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Sandusky Bay Conference
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Shelby County Athletic League
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South Central Ohio League
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Southeastern Ohio Athletic League
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Southern Ohio Conference
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Southwest Ohio Public League
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Southwestern Conference
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Toledo Area Athletic Conference
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Toledo City League
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Western Reserve Conference