Grade boundaries
Edexcel International GCSE (9–1) Biology (Modular) 4XBI1 grade boundaries June 2026
The least raw mark that reached each grade in June 2026, as Edexcel printed it, for the whole subject and each paper.
From Edexcel’s grade boundaries for June 2026: the board’s document.
| Grade | 4WBI1/1out of 90 | 4WBI1/1Rout of 90 | 4WBI2/2out of 90 | 4WBI2/2Rout of 90 |
|---|---|---|---|---|
| 9 | 73 | 73 | 62 | 73 |
| 8 | 63 | 65 | 55 | 64 |
| 7 | 54 | 57 | 48 | 55 |
| 6 | 47 | 49 | 40 | 46 |
| 5 | 41 | 41 | 33 | 38 |
| 4 | 35 | 34 | 26 | 30 |
| 3 | 28 | 28 | 22 | 25 |
| 2 | 22 | 22 | 18 | 20 |
| 1 | 16 | 16 | 14 | 15 |
Marks for each grade
Paper 4WBI1/1
- 73 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 9 in June 2026.
- 63 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 8 in June 2026.
- 54 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 7 in June 2026.
- 47 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 6 in June 2026.
- 41 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 5 in June 2026.
- 35 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 4 in June 2026.
- 28 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 3 in June 2026.
- 22 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 2 in June 2026.
- 16 out of 90 on Edexcel 4XBI1 paper 4WBI1/1 was a grade 1 in June 2026.
Paper 4WBI1/1R
- 73 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 9 in June 2026.
- 65 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 8 in June 2026.
- 57 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 7 in June 2026.
- 49 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 6 in June 2026.
- 41 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 5 in June 2026.
- 34 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 4 in June 2026.
- 28 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 3 in June 2026.
- 22 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 2 in June 2026.
- 16 out of 90 on Edexcel 4XBI1 paper 4WBI1/1R was a grade 1 in June 2026.
Paper 4WBI2/2
- 62 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 9 in June 2026.
- 55 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 8 in June 2026.
- 48 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 7 in June 2026.
- 40 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 6 in June 2026.
- 33 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 5 in June 2026.
- 26 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 4 in June 2026.
- 22 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 3 in June 2026.
- 18 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 2 in June 2026.
- 14 out of 90 on Edexcel 4XBI1 paper 4WBI2/2 was a grade 1 in June 2026.
Paper 4WBI2/2R
- 73 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 9 in June 2026.
- 64 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 8 in June 2026.
- 55 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 7 in June 2026.
- 46 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 6 in June 2026.
- 38 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 5 in June 2026.
- 30 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 4 in June 2026.
- 25 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 3 in June 2026.
- 20 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 2 in June 2026.
- 15 out of 90 on Edexcel 4XBI1 paper 4WBI2/2R was a grade 1 in June 2026.