Does Laurier (Waterloo) care if you repeat a course?
Faculty of Science and the Lazaridis School of Business & Economics programs: We use a weighted average of the first and latest course attempts for required courses only.
All other programs and faculties: We use the highest grade in any repeated courses.
Wilfrid Laurier University — Waterloo, quoted from the OUAC guide for guidance counsellors, September 2026 entry.
How that compares
Laurier (Waterloo) uses your highest grade — the same as 19 of the 23 Ontario universities that answer this.
1 university uses your most recent attempt
Queen's
1 university may not consider repeats at all
U of T (St. George)
1 university assesses repeats case by case
Waterloo
1 university averages your attempts past a threshold
Western
This is what Laurier (Waterloo) tells Ontario guidance counsellors; it is not published on their student pages. Rules like this change rarely, but confirm anything you are about to act on.