Grade boundaries
Edexcel International GCSE (9–1) Biology (Modular) 4XBI1 grade boundaries November 2025
The least raw mark that reached each grade in November 2025, as Edexcel printed it, for the whole subject and each paper.
From Edexcel’s grade boundaries for November 2025: the board’s document.
| Grade | 4WBI1/1out of 90 | 4WBI2/2out of 90 |
|---|---|---|
| 9 | 65 | 65 |
| 8 | 57 | 57 |
| 7 | 50 | 50 |
| 6 | 43 | 43 |
| 5 | 36 | 36 |
| 4 | 30 | 30 |
| 3 | 25 | 25 |
| 2 | 20 | 20 |
| 1 | 16 | 16 |
Marks for each grade
Paper 4WBI1/1
- 65 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 9 in November 2025.
- 57 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 8 in November 2025.
- 50 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 7 in November 2025.
- 43 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 6 in November 2025.
- 36 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 5 in November 2025.
- 30 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 4 in November 2025.
- 25 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 3 in November 2025.
- 20 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 2 in November 2025.
- 16 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 1 in November 2025.
Paper 4WBI2/2
- 65 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 9 in November 2025.
- 57 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 8 in November 2025.
- 50 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 7 in November 2025.
- 43 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 6 in November 2025.
- 36 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 5 in November 2025.
- 30 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 4 in November 2025.
- 25 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 3 in November 2025.
- 20 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 2 in November 2025.
- 16 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 1 in November 2025.