Pearson Edexcel4BI1Latest series: June 2026

Pearson Edexcel International GCSE Biology (4BI1) grade boundaries

In short

In June 2026, candidates needed 142 to 146 out of 180 for grade 9 and 67 to 80 for grade 4.

Grade boundaries by series

Series	Max	9	8	7	6	5	4
June 2026	180	142–146	127–131	112–117	97–104	82–92	67–80
November 2025	180	130	115	100	86	73	60
June 2025	180	140–144	124–127	109–111	94–96	79–81	65–67
November 2024	180	141	126	111	96	82	68
June 2024	180	141	126	111	96–97	82–83	68–69
November 2023	180	142	124	107	93	79	66
June 2023	180	142–146	124–126	107	93	79–80	65–67
January 2023	180	134	114	95	79	64	49
June 2022	180	132–134	111–114	90–95	75–79	60–64	46–49
November 2021	180	128	111	94	76	58	40

Where a subject has more than one set of papers in a series (for example a version sat in a different region), each cell shows the lowest and highest boundary across them. Foundation tier boundaries and the remaining grades are in the source documents.

How to read these numbers

Across the 10 series in the table, the highest grade 9 threshold ranged from 128 to 146. Thresholds change from series to series because each set of papers is different: a harder paper has a lower threshold.

A threshold is the minimum total mark for the grade. Compare your total on a full set of papers with the thresholds for that series and paper variant.

Sources

Figures from the grade boundary documents published by Pearson. ExaminerPrep is not affiliated with Pearson. Always check the source document for your own series and paper variant.

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