A-Level Marine Science grade boundaries — June 2025

Cambridge International AS & A Level (9693). Minimum raw marks for each grade (A*–E) in the June 2025 series, by paper combination. Pick the option matching the papers you sat.

Papers 11, 21, 31, 41

Grade	Min mark	Min %
A*	228	76%
A	200	67%
B	172	58%
C	144	48%
D	117	39%
E	90	30%

Maximum mark: 300.

Papers 12, 22, 32, 42

Grade	Min mark	Min %
A*	228	76%
A	200	67%
B	172	58%
C	145	49%
D	118	40%
E	91	31%

Maximum mark: 300.

Papers 13, 23, 33, 43

Grade	Min mark	Min %
A*	228	76%
A	200	67%
B	172	58%
C	145	49%
D	118	40%
E	91	31%

Maximum mark: 300.

Papers 31, 41, 87

Grade	Min mark	Min %
A*	227	76%
A	195	65%
B	163	55%
C	136	46%
D	110	37%
E	84	29%

Maximum mark: 300.

Papers 32, 42, 88

Grade	Min mark	Min %
A*	230	77%
A	199	67%
B	168	57%
C	141	47%
D	115	39%
E	89	30%

Maximum mark: 300.

Papers 33, 43, 89

Grade	Min mark	Min %
A*	230	77%
A	199	67%
B	168	57%
C	141	47%
D	115	39%
E	89	30%

Maximum mark: 300.

Papers 31, 41, 97

Grade	Min mark	Min %
A*	231	77%
A	202	68%
B	173	58%
C	145	49%
D	117	39%
E	90	30%

Maximum mark: 300.

Papers 32, 42, 98

Grade	Min mark	Min %
A*	231	77%
A	202	68%
B	173	58%
C	145	49%
D	117	39%
E	90	30%

Maximum mark: 300.

Papers 33, 43, 99

Grade	Min mark	Min %
A*	231	77%
A	202	68%
B	173	58%
C	145	49%
D	117	39%
E	90	30%

Maximum mark: 300.

Papers 11, 21

Grade	Min mark	Min %
A	99	66%
B	83	56%
C	69	46%
D	56	38%
E	43	29%

Maximum mark: 150.

Papers 12, 22

Grade	Min mark	Min %
A	99	66%
B	83	56%
C	70	47%
D	57	38%
E	44	30%

Maximum mark: 150.

Papers 13, 23

Grade	Min mark	Min %
A	99	66%
B	83	56%
C	70	47%
D	57	38%
E	44	30%

Maximum mark: 150.

Calculate your Marine Science grade →

Official source (PDF) →

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