Contests in Ontario

 Name of contest   When? Individual or Team
 DMOJ Frequently, check site for details Individual
 ECOO CS Typically starts in mid-late March Team (1-4 people per team)
 Mohawk College Coding Competition For 2017, it is held in May, register by April Team (1-4 people per team)
 University of Waterloo Beaver Contest Typically in early November, register by mid October Individual
 University of Waterloo - Canadian Computing Challenge Typically in February, register near end of January  Individual