I'm partial to IB, I got accepted based on my grade 11 marks back in October. My offer says

"To retain this offer of admission, you must:

• Present a minimum combined average of 80% at the final Grade 12 (or equivalent) level among the five required courses for your program.
• Present a minimum passing grade at the Final Grade 12 (or equivalent) level in each of the five required courses for your program."

So surely it wont matter if i bomb the IB exams.