What Duolingo score do you need for the University of Saskatchewan?

Both pages say all scores must come from one exam date, not combined across dates. Tests are valid for two years (24 months) from the test date and must be valid at the start of your first term.

The graduate page adds that if you defer to a later term, your score must still be valid at the new start date, or you need a new test.

For comparison, the same pages ask for IELTS Academic 6.5 with 6 in each band at both levels.

Both pages accept successful completion of English for Academic Purposes EAP 100 and EAP 101 at the University of Regina. They note the University of Saskatchewan Language Centre has closed permanently, but its Level 4 EAP results stay valid for two years after completion.

Requirements vary by programme and change between admissions cycles. The score that binds you is the one on your USask programme page and in your offer letter, so check it there before you book a test.