How a Diploma Exam Rewrite Affects a University Application You've Already Submitted
By Muntasir Minhaz • Published Aug 19, 2026 • Admissions & Applications, Canadian Universities & Colleges
Rewrite an Alberta diploma exam at a later sitting when you are unhappy with your result, and the new exam mark recalculates into your 70/30 blended final course mark the same way the first one did. That updated mark reaches your university through Alberta Education's normal transcript reporting, not through anything you deliver by hand, but you should still tell your admissions office directly if you already have an application or conditional offer on file.
🎓 Diploma exam rewrites happen at a later sitting: January, April, June or August
Your new exam mark blends into your final mark at the same 70% school / 30% exam split
📩 Alberta Education reports the updated blended mark to your university automatically
Tell your admissions office you plan to rewrite so an incoming update is not a surprise
⏱️ A rewrite moves your blended mark down as well as up
You are allowed to rewrite an exam you already sat
Alberta Education allows students to rewrite a diploma exam at a later sitting if they are not satisfied with their result. Sittings run in January, April, June and August each school year, so the sittings still available to you depend on when in the year you are rewriting. Talk to your school's diploma exam coordinator about registering for a specific sitting, since the exact process runs through your school rather than directly through the university you applied to.
Rewrite versus a mark reappraisal
A rewrite means sitting the diploma exam again at a later date and receiving a brand new mark. This differs from a reappraisal, which asks the province to review the marking of your original exam without writing it again. If you believe your original exam was marked incorrectly rather than simply written poorly, ask your school counsellor whether a reappraisal request fits your situation better than a full rewrite before you commit to either path.
How the rewrite changes your blended mark
Your new exam result recalculates against the same school-awarded mark using the standard 70% school, 30% exam split. If your school mark stays fixed at 78% and your exam mark moves from 55% to 75%, your blended final mark moves from 71.1% to 77.1%, a real change even though the exam is the smaller of the two components. The reverse also holds: if a rewrite comes in lower than your first attempt, your blended mark drops using the same math.
Why your school-awarded mark stays fixed
A rewrite changes only your diploma exam mark, not your school-awarded mark, since that portion reflects work you already completed in class. This caps how much a rewrite moves your blended final mark. Even a large jump in your exam result, from a weak mark to a strong one, moves your blended mark by at most 30 percentage points of that gap, since the exam is capped at 30% of the total.
How the update reaches a university that already has your file
Once your rewritten exam is marked and your blended mark is recalculated, Alberta Education reports the updated final mark through the same electronic transcript channel that sent your original one. If a university already has an application, a conditional offer, or a confirmed offer on file for you, the updated mark reaches that file through the normal reporting process rather than requiring you to submit a new transcript yourself.
How ApplyAlberta fits into the process
Alberta post-secondary institutions, including the University of Alberta, University of Calgary, MacEwan and Mount Royal, receive applications and supporting transcript information through ApplyAlberta, the province's common online application system. Once your school reports an updated blended mark to Alberta Education after a rewrite, that mark flows into your official record and reaches any institution already tracking your file through this shared system, rather than through a separate document you submit university by university.
A rewrite still recalculates your official record even after you have graduated high school, since Alberta Education keeps your blended course marks on file. This matters if you rewrite after finishing Grade 12 but before or during a university application built on that transcript.
Still contact your admissions office directly once you decide to rewrite. Tell them which course, which sitting, and roughly when the updated mark should post, so an incoming change is not a surprise on their end and so you have a direct line to ask what it means for your specific offer.
When a rewrite is worth it
A rewrite is most worth pursuing when your original exam mark sits well below your school-awarded mark for the same course, since that gap is exactly what a stronger second attempt closes. It matters less when your exam mark already tracks close to your school mark, since there is little room left to move the blended number. Weigh the gap for the specific course against the time and preparation a rewrite takes before you register. Studying for a rewrite while you carry a full course load in a new semester takes real planning, so treat the decision as a trade-off against your other coursework rather than an automatic choice whenever a mark disappoints you.
Steps to take if you plan to rewrite after applying
Confirm your school's registration process and deadline for the next available sitting.
Tell any university where you have an application or offer on file that a rewrite is coming.
Keep a record of your original blended mark for reference.
Watch for your updated result and confirm it posted to your official record.
Follow up with your admissions office if your offer's conditions depend on the outcome.
Keep your school counsellor informed too, since they coordinate the rewrite registration on your behalf.