Pearson Edexcel4CH1Latest series: June 2026

Pearson Edexcel International GCSE Chemistry (4CH1) grade boundaries

In short

In June 2026, candidates needed 141 to 150 out of 180 for grade 9 and 66 to 77 for grade 4.

Grade boundaries by series

Series	Max	9	8	7	6	5	4
June 2026	180	141–150	122–130	103–111	90–99	78–88	66–77
November 2025	180	136	114	92	79	67	55
June 2025	180	151–154	134–136	117–119	104–106	91–93	79–81
November 2024	180	155	135	115	100	85	71
June 2024	180	146–147	127	107–109	94–96	81–83	69–70
November 2023	180	147	125	103	88	74	60
June 2023	180	143–145	120–123	98–101	84–87	71–73	58–59
January 2023	180	141–142	118–119	96–97	81–82	66–67	51–52
June 2022	180	136–140	112–117	88–95	74–80	61–65	48–51
November 2021	180	136	116	97	78	59	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 136 to 155. 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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