Welcome to the home of the Central Ontario Baseball Association (COBA) This site is intended as a resource for coaches, players and parents to access schedules and standings for their divisions in COBA. If your particular division is not updated please contact your series convener. The Central Ontario Baseball Association Inc. was formed in 1984. It was previously known as the Halton County Baseball Association. The HCBA was founded in 1920, but our earliest records available, date back to only 1944.