The Niagara District Senior Baseball League encompasses all of the Niagara Region and currently has 7 teams total from St. Catharines, Merritton, Beamsville, Thorold, Welland, Niagara Falls and Fort Erie. The current edition of the NDBA Mens Baseball League has been in existance since 2006 however prior to the leagues creation teams would interlock with teams from the US/Buffalo area.  

	Merritton Alliance	Thorold Anchors	Fort Erie Cannons	Welland Pioneers
OBA Champions	2016	1995, 2022	2015, 2018
NDBA Champions	2006,2007,2009, 2012		2015,2017,2018, 2022

	St. Catharines Cobras	Niagara Falls Expos	Beamsville Yellow Jackets
OBA Champions			2023
NDBA Champions		2016,2019	2023, 2024

Past Teams

Rose City Thorns NDBA Champions 2008, 2011, 2013, 2014, 2021 OBA Champions 2012

Welland Pirates

Thorold White Sox