To all prospective students, congrats on choosing McMaster as your top choice!
Specific admission averages haven't been posted yet, but here are the averages from 2015 to give you an idea:
http://future.mcmaster.ca/2015/05/13...sion-averages/
Note that these averages are calculated based on your top six Grade 12U/M courses (for OUAC 101/Ontario applicants), including those courses required for the specific Level I programs.
The standard decision release deadline is end of May.
The minimum Admission Average required to receive a guaranteed space in residence is 82%