Overview
Official 0610 Biology grade boundaries for June 2026 publish in August — IGCSE grades 18 August 2026, component threshold tables around 13 August. Estimate with marked past papers via the [0610 calculator](/tools/grade-boundary-calculator/0610).
Quick answer
For Cambridge syllabus 0610, [Post-exam prep](/blog/cambridge-post-exam-results-prep-2026) — [Results day guide](/blog/cambridge-results-day-august-2026-guide)
| Question | Answer |
|---|---|
| When are June 2026 IGCSE grades released? | 18 August 2026 (06:00 GMT) |
| When are threshold tables published? | ~13 August 2026 |
| Papers? | MCQ + theory + practical / alternative to practical (check your entry) |
| Marking style? | Precise terminology on structured Qs |
| Estimate tool | 0610 grade calculator |
What are grade boundaries?
For Cambridge syllabus 0610, grade boundaries are the minimum raw marks for each grade on every 0610 component you sat — MCQ, theory, and your practical or alternative-to-practical route. They are not fixed percentages: Cambridge publishes a separate threshold row per component code (for example `0610/21` vs `0610/22`). Your overall IGCSE grade uses a weighted aggregate; A* is decided on that total, not on one paper alone.
How Cambridge sets 0610 boundaries
For Cambridge syllabus 0610, thresholds are fixed after marking so comparable standards hold year to year. If a Paper 4 extended theory paper is harder than the previous June series, raw cut-offs usually drop — social media "everyone got a C" posts ignore this mechanism. Practical and ATP components have their own rows; never paste thresholds from a different paper variant ([wrong-session estimates](/insights)).
Core vs Extended at a glance
For Cambridge syllabus 0610, confirm your entry with your exams officer — mixing tiers is not allowed.
| Tier | Typical papers | Grade range |
|---|---|---|
| Core | Paper 1 + Paper 3 (+ practical route) | C to G |
| Extended | Paper 2 + Paper 4 (+ practical route) | A* to E |
How to estimate your grade
This section covers How to estimate your grade — ranked by what Cambridge examiners return to most often in past papers.
- Complete a recent paper under timed conditions for your tier (Core or Extended).
- Mark with exact mark-scheme vocabulary — paraphrased definitions rarely score (insights).
- Log marks lost on recall vs application, then compare component raw marks to June 2024/2023 in the 0610 calculator.
Frequently asked questions
For Cambridge syllabus 0610, threshold PDFs ~13 August; grades 18 August.
When are official boundaries released?
Is 80% always an A*?
No — raw thresholds change every session.
IGCSE vs O-Level Biology?
Confirm your 0610 code on your statement of entry — papers differ from 5090.
Related subjects
For Cambridge syllabus 0610, iGCSE sciences share the August results window (18 August grades, ~13 August thresholds) but each syllabus code has its own PDF — cross-link for revision planning, not for copying numbers. See the [grade boundaries hub](/guides/grade-boundaries) for every syllabus calculator. Cross-link below for adjacent syllabuses only; never swap threshold numbers between codes or sessions.