Grade boundaries

Edexcel International GCSE (9–1) Biology 4BI1 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	Whole subject (1B 2B)out of 180	Whole subject (1BR 2BR)out of 180	4BI1/1Bout of 110	4BI1/1BRout of 110	4BI1/2Bout of 70	4BI1/2BRout of 70
9	142	146	89	92	53	54
8	127	131	80	82	46	49
7	112	117	72	73	40	44
6	97	104	63	65	33	39
5	82	92	55	57	26	34
4	67	80	47	50	20	30
3	55	64	38	40	17	24
2	43	49	29	30	14	18
1	32	34	21	21	11	13

Marks for each grade

142 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 9 in June 2026.
127 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 8 in June 2026.
112 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 7 in June 2026.
97 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 6 in June 2026.
82 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 5 in June 2026.
67 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 4 in June 2026.
55 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 3 in June 2026.
43 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 2 in June 2026.
32 out of 180 on Edexcel 4BI1 (1B 2B) in total was a grade 1 in June 2026.

146 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 9 in June 2026.
131 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 8 in June 2026.
117 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 7 in June 2026.
104 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 6 in June 2026.
92 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 5 in June 2026.
80 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 4 in June 2026.
64 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 3 in June 2026.
49 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 2 in June 2026.
34 out of 180 on Edexcel 4BI1 (1BR 2BR) in total was a grade 1 in June 2026.

Grade	Whole subject (1B 2B)out of 180	Whole subject (1BR 2BR)out of 180	4BI1/1Bout of 110	4BI1/1BRout of 110	4BI1/2Bout of 70	4BI1/2BRout of 70
9	142	146	89	92	53	54
8	127	131	80	82	46	49
7	112	117	72	73	40	44
6	97	104	63	65	33	39
5	82	92	55	57	26	34
4	67	80	47	50	20	30
3	55	64	38	40	17	24
2	43	49	29	30	14	18
1	32	34	21	21	11	13

Grade	Whole subject (1B 2B)out of 180	Whole subject (1BR 2BR)out of 180	4BI1/1Bout of 110	4BI1/1BRout of 110	4BI1/2Bout of 70	4BI1/2BRout of 70
9	142	146	89	92	53	54
8	127	131	80	82	46	49
7	112	117	72	73	40	44
6	97	104	63	65	33	39
5	82	92	55	57	26	34
4	67	80	47	50	20	30
3	55	64	38	40	17	24
2	43	49	29	30	14	18
1	32	34	21	21	11	13

Grade	Whole subject (1B 2B)out of 180	Whole subject (1BR 2BR)out of 180	4BI1/1Bout of 110	4BI1/1BRout of 110	4BI1/2Bout of 70	4BI1/2BRout of 70
9	142	146	89	92	53	54
8	127	131	80	82	46	49
7	112	117	72	73	40	44
6	97	104	63	65	33	39
5	82	92	55	57	26	34
4	67	80	47	50	20	30
3	55	64	38	40	17	24
2	43	49	29	30	14	18
1	32	34	21	21	11	13