A-Level Marine Science grade boundaries — June 2025
Cambridge International AS & A Level (9693). Minimum weighted marks for each grade in the June 2025 series, by paper combination. Find the row matching the papers you sat.
Compared with June 2024, the A* boundary for Papers 11, 21, 31, 41 fell by 8 marks (236 → 228) and the E boundary rose by 3 marks (87 → 90).
A Level options — June 2025
| Papers | Max | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|---|
| Papers 11, 21, 31, 41 | 300 | 22876% | 20067% | 17258% | 14448% | 11739% | 9030% |
| Papers 12, 22, 32, 42 | 300 | 22876% | 20067% | 17258% | 14549% | 11840% | 9131% |
| Papers 13, 23, 33, 43 | 300 | 22876% | 20067% | 17258% | 14549% | 11840% | 9131% |
| Papers 31, 41, 87 | 300 | 22776% | 19565% | 16355% | 13646% | 11037% | 8429% |
| Papers 32, 42, 88 | 300 | 23077% | 19967% | 16857% | 14147% | 11539% | 8930% |
| Papers 33, 43, 89 | 300 | 23077% | 19967% | 16857% | 14147% | 11539% | 8930% |
| Papers 31, 41, 97 | 300 | 23177% | 20268% | 17358% | 14549% | 11739% | 9030% |
| Papers 32, 42, 98 | 300 | 23177% | 20268% | 17358% | 14549% | 11739% | 9030% |
| Papers 33, 43, 99 | 300 | 23177% | 20268% | 17358% | 14549% | 11739% | 9030% |
Marks are minimum weighted totals; percentages are rounded up. Anything below the E threshold is ungraded (U).
AS Level options — June 2025
| Papers | Max | A | B | C | D | E |
|---|---|---|---|---|---|---|
| Papers 11, 21 | 150 | 9966% | 8356% | 6946% | 5638% | 4329% |
| Papers 12, 22 | 150 | 9966% | 8356% | 7047% | 5738% | 4430% |
| Papers 13, 23 | 150 | 9966% | 8356% | 7047% | 5738% | 4430% |
Marks are minimum weighted totals; percentages are rounded up. Anything below the E threshold is ungraded (U).
Paper (component) thresholds — June 2025
The minimum raw mark on each individual paper. Cambridge weights and adds these to set the syllabus boundaries above; there is no A* at paper level.
| Paper | Max | A | B | C | D | E |
|---|---|---|---|---|---|---|
| Paper 11 | 75 | 5067% | 4155% | 3344% | 2635% | 1926% |
| Paper 12 | 75 | 5168% | 4257% | 3547% | 2838% | 2027% |
| Paper 13 | 75 | 5168% | 4257% | 3547% | 2838% | 2027% |
| Paper 21 | 75 | 4966% | 4257% | 3648% | 3040% | 2432% |
| Paper 22 | 75 | 4864% | 4155% | 3547% | 2939% | 2432% |
| Paper 23 | 75 | 4864% | 4155% | 3547% | 2939% | 2432% |
| Paper 31 | 75 | 4966% | 4358% | 3750% | 3040% | 2331% |
| Paper 32 | 75 | 4966% | 4358% | 3648% | 2939% | 2331% |
| Paper 33 | 75 | 4966% | 4358% | 3648% | 2939% | 2331% |
| Paper 41 | 75 | 5270% | 4662% | 3851% | 3142% | 2432% |
| Paper 42 | 75 | 5270% | 4662% | 3952% | 3243% | 2432% |
| Paper 43 | 75 | 5270% | 4662% | 3952% | 3243% | 2432% |
June 2025 vs June 2024
Change in the minimum mark for matching paper routes (same series, one year earlier). Positive = harder to reach the grade.
| Papers | A* | A | B | C | D | E |
|---|---|---|---|---|---|---|
| Papers 11, 21, 31, 41 | -8 236→228 | -2 202→200 | +4 168→172 | +3 141→144 | +3 114→117 | +3 87→90 |
| Papers 31, 41, 87 | -6 233→227 | -5 200→195 | -4 167→163 | -3 139→136 | -2 112→110 | -1 85→84 |
| Papers 31, 41, 97 | -7 238→231 | -4 206→202 | -1 174→173 | ±0 145→145 | ±0 117→117 | +1 89→90 |
| Papers 11, 21 | +1 98→99 | +4 79→83 | +3 66→69 | +2 54→56 | +1 42→43 |
Marine Science grade boundaries June 2024 → · All sessions since June 2022 →
Frequently asked
- What was the A* boundary for Marine Science in June 2025?
- For Papers 11, 21, 31, 41, an A* needed 228 out of 300 weighted marks (76%). Other paper combinations have their own thresholds — see the table above.
- What mark was a pass (grade E) in Marine Science June 2025?
- Grade E is the lowest pass. For Papers 11, 21, 31, 41 it needed 90/300 (30%). Below that the result is U (ungraded).
- Why are the paper thresholds different from the overall boundaries?
- Cambridge sets a threshold for each paper (component) first, then weights and adds them to get the syllabus boundary for each combination of papers. Your grade comes from the weighted total, not from any single paper. Paper thresholds have no A* — the A* only exists at syllabus level.
- Did Marine Science grade boundaries go up or down in June 2025?
- Compared with June 2024, the A* boundary for Papers 11, 21, 31, 41 fell by 8 marks (236 → 228) and the E boundary rose by 3 marks (87 → 90). Boundaries move to keep the standard constant when a paper turns out harder or easier than usual.
Calculate your Marine Science grade → Percentage needed for each grade
← November 2024 · November 2025 →
Figures sourced from the official Cambridge grade threshold tables. Always confirm with your exam board.