IGCSE Biology (9-1) 0970 grade boundaries — June 2026

Cambridge IGCSE (CAIE) (0970). The official grade thresholds for the June 2026 series — the minimum raw mark needed for each grade, by tier and paper combination. Pick the option matching the papers you sat.

Cambridge publishes these as grade threshold tables: "grade thresholds" and "grade boundaries" are two names for the same numbers.

June 2026 at a glance

A 5 in Biology (9-1) required 126/200 (63%) on papers 11, 31, 51.
Across paper variants, the 5 boundary ranged from 97 to 130 marks — variant choice mattered this session.
A grade 4 needed roughly 56% on papers 11, 31, 51.

Papers 11, 31, 51

Grade	Min mark	Min %
5	126	63%
4	111	56%
3	90	45%
2	70	35%
1	50	25%

Maximum mark: 200.

Papers 11, 31, 61

Grade	Min mark	Min %
5	127	64%
4	112	57%
3	92	46%
2	72	36%
1	53	27%

Maximum mark: 200.

Papers 12, 32, 62

Grade	Min mark	Min %
5	130	65%
4	116	58%
3	98	49%
2	80	40%
1	62	31%

Maximum mark: 200.

Papers 21, 41, 51

Grade	Min mark	Min %
9	168	84%
8	152	76%
7	137	69%
6	118	59%
5	100	50%
4	82	41%
3	69	35%
2	56	29%
1	43	22%

Maximum mark: 200.

Papers 21, 41, 61

Grade	Min mark	Min %
9	169	85%
8	153	77%
7	138	69%
6	119	60%
5	101	51%
4	83	42%
3	70	35%
2	58	29%
1	46	23%

Maximum mark: 200.

Papers 22, 42, 62

Grade	Min mark	Min %
9	172	86%
8	156	78%
7	141	71%
6	124	62%
5	107	54%
4	90	45%
3	74	37%
2	58	29%
1	42	21%

Maximum mark: 200.

Papers 31, 54, 71

Grade	Min mark	Min %
5	124	62%
4	109	55%
3	89	45%
2	69	35%
1	49	25%

Maximum mark: 200.

Papers 31, 54, 74

Grade	Min mark	Min %
5	125	63%
4	110	56%
3	90	45%
2	70	35%
1	51	26%

Maximum mark: 200.

Papers 31, 82, 92

Grade	Min mark	Min %
5	125	63%
4	110	56%
3	90	45%
2	71	36%
1	52	26%

Maximum mark: 200.

Papers 31, 82, 95

Grade	Min mark	Min %
5	125	63%
4	110	56%
3	90	45%
2	71	36%
1	52	26%

Maximum mark: 200.

Papers 32, 55, 72

Grade	Min mark	Min %
5	129	65%
4	115	58%
3	97	49%
2	79	40%
1	61	31%

Maximum mark: 200.

Papers 32, 55, 75

Grade	Min mark	Min %
5	129	65%
4	115	58%
3	97	49%
2	79	40%
1	61	31%

Maximum mark: 200.

Papers 41, 64, 71

Grade	Min mark	Min %
9	168	84%
8	151	76%
7	135	68%
6	116	58%
5	97	49%
4	79	40%
3	67	34%
2	55	28%
1	43	22%

Maximum mark: 200.

Papers 41, 64, 74

Grade	Min mark	Min %
9	169	85%
8	152	76%
7	136	68%
6	117	59%
5	98	49%
4	80	40%
3	68	34%
2	56	29%
1	45	23%

Maximum mark: 200.

Papers 41, 85, 92

Grade	Min mark	Min %
9	167	84%
8	151	76%
7	135	68%
6	118	59%
5	101	51%
4	84	42%
3	70	35%
2	56	29%
1	43	22%

Maximum mark: 200.

Papers 41, 85, 95

Grade	Min mark	Min %
9	167	84%
8	151	76%
7	136	68%
6	118	59%
5	101	51%
4	84	42%
3	70	35%
2	56	29%
1	43	22%

Maximum mark: 200.

Papers 42, 65, 72

Grade	Min mark	Min %
9	170	85%
8	154	77%
7	139	70%
6	123	62%
5	108	54%
4	93	47%
3	76	38%
2	59	30%
1	43	22%

Maximum mark: 200.

Papers 42, 65, 75

Grade	Min mark	Min %
9	171	86%
8	155	78%
7	140	70%
6	124	62%
5	108	54%
4	93	47%
3	76	38%
2	59	30%
1	43	22%

Maximum mark: 200.

Papers 50

Grade	Min mark	Min %
9	84	94%
8	79	88%
7	75	84%
6	69	77%
5	63	70%
4	57	64%
3	46	52%
2	35	39%
1	25	28%

Maximum mark: 90.

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Figures sourced from the official Cambridge grade threshold tables. Always confirm with your exam board.