Edexcel GCSE Biology grade boundaries 2026: every grade
GCSE Biology Higher
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Biology 1BI0: the June 2026 lines
These are the figures in Pearson's 2026 GCSE (9-1) document, with each shown as a share of 200 beneath it.
| Higher tier, June 2026 | 9 | 8 | 7 | 6 | 5 | 4 | 3 |
|---|---|---|---|---|---|---|---|
| Mark | 170 | 158 | 147 | 126 | 105 | 84 | 73 |
| Share of 200 | 85% | 79% | 74% | 63% | 53% | 42% | 37% |
| Foundation tier, June 2026 | 5 | 4 | 3 | 2 | 1 |
|---|---|---|---|---|---|
| Mark | 132 | 115 | 84 | 53 | 22 |
| Share of 200 | 66% | 58% | 42% | 27% | 11% |
The course is set out in the Edexcel GCSE Biology guide, and the full board list is Edexcel GCSE grade boundaries 2026.
Three summers
This table adds 2024 and 2025:
| Out of 200 | 2024 | 2025 | 2026 | 2026 on 2025 |
|---|---|---|---|---|
| Higher grade 9 | 166 | 167 | 170 | +3 |
| Higher grade 7 | 139 | 144 | 147 | +3 |
| Higher grade 6 | 116 | 124 | 126 | +2 |
| Higher grade 4 | 71 | 84 | 84 | 0 |
| Foundation grade 5 | 130 | 130 | 132 | +2 |
| Foundation grade 4 | 111 | 111 | 115 | +4 |
| Foundation grade 3 | 81 | 81 | 84 | +3 |
Higher grade 9 reached 170, up 3 on 2025 and 4 on 2024, which is 85% of the total and the top line among the Edexcel GCSE sciences. Grade 4 matched 2025 at 84. On Foundation, grade 5 rose from 130 to 132, grade 4 from 111 to 115, and grade 3 from 81 to 84, after a year with no change at all.
Where the 200 marks sit
| Paper | Length | Marks | Topics |
|---|---|---|---|
| Paper 1 (1BI0/1F or 1H) | 1 hour 45 minutes | 100 | 1 Key concepts; 2 Cells and control; 3 Genetics; 4 Natural selection and genetic modification; 5 Health, disease and the development of medicines |
| Paper 2 (1BI0/2F or 2H) | 1 hour 45 minutes | 100 | 1 Key concepts; 6 Plant structures and their functions; 7 Animal coordination, control and homeostasis; 8 Exchange and transport in animals; 9 Ecosystems and material cycles |
Pearson sets the same two papers for both tiers in structure, and you take both in the same summer. To reach the Higher grade 7 line of 147 you need an average of 73.5 marks on each 100-mark paper. For a Foundation grade 4, the line of 115 means 57.5 on each. Neither paper has to hit that average alone, so a strong Paper 2 can cover a weaker Paper 1.
A 2026 worked example
On Higher, 70 on Paper 1 and 73 on Paper 2 is a total of 143. The 2026 lines run 6 at 126 and 7 at 147, so it is a grade 6, 4 marks short of a 7.
On Foundation, 108 out of 200 is above 84 (grade 3) and below 115 (grade 4), so a grade 3, 7 marks short of a 4.
Reading 2026 for Biology
- Grade 9 is 85%. Little room for lost marks.
- Higher grade 4 is 42%, well below half.
- Foundation grade 5 is 66%. The two tiers need different preparation, not just different papers.
Use today's Higher or Foundation paper, which is not an Edexcel paper, as a check. A share from it sits against the table above.
Common questions
What are the Edexcel GCSE Biology grade boundaries for 2026?
What mark is a grade 7 in Edexcel GCSE Biology 2026?
What mark is a grade 4 in Edexcel GCSE Biology 2026?
Did Edexcel Biology boundaries rise in 2026?
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UK · GCSEEdexcel GCSE grade boundaries 2026: marks for every gradePearson's official June 2026 Edexcel GCSE boundaries for Maths, the sciences and Computer Science, compared with 2025 and with AQA.