A GCSE predicted grade is a teacher's professional estimate of the grade a student is most likely to achieve in the real exam. It's based on classwork, homework, and — most heavily — mock exam performance, and it exists mainly because post-16 college and sixth-form applications happen months before the actual results are published. It is an estimate, not a promise.
Where predicted grades come from
Unlike a final GCSE grade, there's no single formula for a predicted grade. A teacher forms it from a combination of:
- Classwork and homework quality over the course leading up to that point
- Mock exam results — usually the single biggest input, since mocks most closely mirror the real exam
- Trends over time — a student who's clearly improving may be predicted a grade above their most recent mock, and a student who's dipped may be flagged for support rather than simply predicted lower
Because it draws on professional judgement rather than a fixed calculation, two teachers looking at the same evidence could in principle land on slightly different predictions — which is one reason schools often review predictions with more than one teacher or head of department involved.
What predicted grades are actually used for
The main reason predicted grades exist at all is timing: sixth forms, colleges and some apprenticeship schemes need to make offers to Year 11 students well before the real GCSE results are published in August. Predicted grades let that happen — a college can make a conditional offer ("we'll accept you if you achieve at least these grades") based on the prediction, then confirm it once real results land.
They're also useful inside school: a subject where the predicted grade sits well below where a family or student expected is often the trigger for a conversation about extra support, a change of approach, or simply more focused revision time in that subject.
Predicted grades are not guarantees — in either direction
It's worth being upfront with a child about this: a predicted grade is the most likely outcome the teacher can see today, not a locked-in result. Students regularly beat their predictions, and some come in below them — both are normal, and neither means the system failed. What tends to move the needle between prediction and final result is exactly what you'd expect: how revision goes between the prediction and the exam, and how the individual sits with exam-day pressure.
This is worth remembering if a prediction feels lower than hoped — it's a snapshot based on evidence available at that point in the year, most often before the final stretch of revision has even happened, not a verdict on what's possible.
How predicted grades relate to mocks and to final grades
Predicted grades sit at the middle of a three-stage picture:
| Stage | What it is | When |
|---|---|---|
| Mock exam result | Internal practice exam performance | Usually Year 11, sometimes Year 10 |
| Predicted grade | Teacher's estimate, informed heavily by mocks | Set for post-16 applications, typically late Year 11 |
| Final GCSE grade | The actual, official result | Results day in August |
If your child's predicted grade sits below what the family hopes for, the most useful response is usually the same as after a disappointing mock: identify the specific gaps and address them with focused, regular revision — rather than treating the prediction itself as fixed.
FAQ
How are GCSE predicted grades decided?
A teacher's professional judgement, informed by classwork, homework, mock exam results, and how a student has trended over time. There's no single formula — it's an estimate of the grade a student is most likely to achieve, made by the person who knows their work best.
Can a predicted grade be wrong?
Yes, in either direction. A predicted grade is an estimate, not a guarantee, and the final result can come in higher or lower depending on how revision goes, how the exam itself lands for that student, and events between the prediction and the exam. It's common and not a cause for alarm on its own.
What are predicted grades used for?
Mainly for post-16 applications — sixth forms, colleges and some apprenticeship routes use predicted grades to make conditional offers, since applications happen months before the real GCSE results are known. They can also flag to a school where extra support might help before the real exams.