Your grade journey
Edexcel International GCSE Science (Double Award)grade boundaries
Explore official boundaries. See where your marks take you.
4SD02 official seriesMaximum mark 330
Exam series
Papers
Flight log / June 2026
Grade boundaries
OfficialPapers 1B 1C 1P · Out of 330
Grade 9–9
257
marks / 330
Grade 7–7
198
marks / 330
Grade 5–5
152
marks / 330
Grade 4–4
130
marks / 330
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| 9–9 | 257 | 257–330 | 78% |
| 9–8 | 242 | 242–256 | 73% |
| 8–8 | 227 | 227–241 | 69% |
| 8–7 | 212 | 212–226 | 64% |
| 7–7 | 198 | 198–211 | 60% |
| 7–6 | 186 | 186–197 | 56% |
| 6–6 | 174 | 174–185 | 53% |
| 6–5 | 163 | 163–173 | 49% |
| 5–5 | 152 | 152–162 | 46% |
| 5–4 | 141 | 141–151 | 43% |
| 4–4 | 130 | 130–140 | 39% |
| 4–3 | 118 | 118–129 | 36% |
| 3–3 | 106 | 106–117 | 32% |
| 3–2 | 94 | 94–105 | 28% |
| 2–2 | 83 | 83–93 | 25% |
| 2–1 | 72 | 72–82 | 22% |
| 1–1 | 61 | 61–71 | 18% |
| U | Below 61 | ||
These boundaries apply to this exam series and route. Paper maximums ↗
How these boundaries have changed
Papers 1B 1C 1P, every official series. Boundaries move each year with how hard the papers were.
| Series | 9–9 | 9–8 | 8–8 | 8–7 | 7–7 | 7–6 | 6–6 | 6–5 | 5–5 | 5–4 | 4–4 | 4–3 | 3–3 | 3–2 | 2–2 | 2–1 | 1–1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| June 2026 | 257 | 242 | 227 | 212-1 | 198-1 | 186-1 | 174-2 | 163-2 | 152-2 | 141-2 | 130-2 | 118-2 | 106-2 | 94-2 | 83-1 | 72 | 61 |
| June 2025 | 257 | 242 | 227 | 213 | 199 | 187 | 176 | 165 | 154 | 143 | 132 | 120 | 108 | 96 | 84 | 72 | 61 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
June 2026 · Papers 1B 1C 1P
Enter your mark for each paper to see your grade.
242 marks needed for Grade 9–8.
Frequently asked questions
What did you need for a grade 4–4 in Science (Double Award) in June 2026?
In June 2026, grade 4–4 in Pearson Edexcel International GCSE Science (Double Award) (4SD0) needed 130 out of 330 on papers 1b 1c 1p; 135 out of 330 on papers 1br 1cr 1pr.
What was the boundary for a grade 9–9 in June 2026?
257 out of 330 on papers 1b 1c 1p; 258 out of 330 on papers 1br 1cr 1pr — the top grade for International GCSE Science (Double Award) in June 2026.
How is my grade worked out?
Your marks from each paper are added up (scaled by a weighting factor where papers count differently) to give your subject mark, which is then compared with the boundaries. Your grade comes from the total — not from each paper separately.
When will the next boundaries be published?
Pearson Edexcel publishes grade boundaries on results day for each series. Until then, any figures shown for a future series are Starley estimates, clearly labelled, based on recent years.