How the top 6 works
Ontario universities calculate an admission average from six Grade 12 U or M courses: the courses your program requires (for example ENG4U, MHF4U) plus your best remaining U/M courses. Some programs also use supplementary applications.
FAQ
Do all universities use the top 6?
Most Ontario universities do, but some programs weigh required courses more or look at Grade 11 marks for early offers.
Source (checked 6 Nov 2026): Ontario Universities’ Application Centre (OUAC) and university admission pages.