Your grade journey
OCR AS Biology Agrade boundaries
Explore official boundaries. See where your marks take you.
H0203 official seriesMaximum mark 140
Exam series
Flight log / June 2026
Grade boundaries
OfficialAll papers · 01 / 02 · Out of 140
Grade A
103
marks / 140
Grade C
82
marks / 140
Grade E
62
marks / 140
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| A | 103 | 103–140 | 74% |
| B | 92 | 92–102 | 66% |
| C | 82 | 82–91 | 59% |
| D | 72 | 72–81 | 51% |
| E | 62 | 62–71 | 44% |
| U | Below 62 | ||
These boundaries apply to this exam series and route.
How these boundaries have changed
All papers, every official series. Boundaries move each year with how hard the papers were.
| Series | A | B | C | D | E |
|---|---|---|---|---|---|
| June 2026 | 103+16 | 92+14 | 82+13 | 72+12 | 62+11 |
| June 2025 | 87-5 | 78-4 | 69-3 | 60-2 | 51-1 |
| June 2024 | 92 | 82 | 72 | 62 | 52 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
June 2026 · All papers
Enter your mark for each paper to see your grade.
103 marks needed for Grade A.
Frequently asked questions
What did you need for a grade E in Biology A in June 2026?
In June 2026, grade E in OCR AS Biology A (H020) needed 62 out of 140 on all papers.
What was the boundary for a grade A in June 2026?
103 out of 140 on all papers — the top grade for AS Biology A in June 2026.
How is my grade worked out?
Your marks from each paper are added up (scaled by a weighting factor where papers count differently) to give your subject mark, which is then compared with the boundaries. Your grade comes from the total — not from each paper separately.
When will the next boundaries be published?
OCR publishes grade boundaries on results day for each series. Until then, any figures shown for a future series are Starley estimates, clearly labelled, based on recent years.