Grade boundaries
Cambridge Cambridge O Level Science - Combined 5129 grade boundaries November 2025
The least raw mark that reached each grade in November 2025, as Cambridge printed it, for the whole subject and each paper.
From Cambridge’s grade boundaries for November 2025: the board’s document.
| Grade | Whole subject (11, 21, 31)out of 200 | Whole subject (12, 22, 32)out of 200 | 5129/11out of 40 | 5129/12out of 40 | 5129/21out of 80 | 5129/22out of 80 | 5129/31out of 40 | 5129/32out of 40 |
|---|---|---|---|---|---|---|---|---|
| A* | 154 | 154 | – | – | – | – | – | – |
| A | 129 | 129 | 27 | 29 | 51 | 48 | 25 | 25 |
| B | 104 | 104 | 23 | 25 | 40 | 37 | 20 | 20 |
| C | 79 | 79 | 19 | 22 | 28 | 25 | 15 | 15 |
| D | 67 | 67 | 17 | 19 | 24 | 21 | 12 | 12 |
| E | 55 | 55 | 15 | 17 | 19 | 16 | 9 | 9 |
Marks for each grade
In total (11, 21, 31)
- 154 out of 200 on Cambridge 5129 (11, 21, 31) in total was a grade A* in November 2025.
- 129 out of 200 on Cambridge 5129 (11, 21, 31) in total was a grade A in November 2025.
- 104 out of 200 on Cambridge 5129 (11, 21, 31) in total was a grade B in November 2025.
- 79 out of 200 on Cambridge 5129 (11, 21, 31) in total was a grade C in November 2025.
- 67 out of 200 on Cambridge 5129 (11, 21, 31) in total was a grade D in November 2025.
- 55 out of 200 on Cambridge 5129 (11, 21, 31) in total was a grade E in November 2025.
In total (12, 22, 32)
- 154 out of 200 on Cambridge 5129 (12, 22, 32) in total was a grade A* in November 2025.
- 129 out of 200 on Cambridge 5129 (12, 22, 32) in total was a grade A in November 2025.
- 104 out of 200 on Cambridge 5129 (12, 22, 32) in total was a grade B in November 2025.
- 79 out of 200 on Cambridge 5129 (12, 22, 32) in total was a grade C in November 2025.
- 67 out of 200 on Cambridge 5129 (12, 22, 32) in total was a grade D in November 2025.
- 55 out of 200 on Cambridge 5129 (12, 22, 32) in total was a grade E in November 2025.
Paper 5129/11
- 27 out of 40 on Cambridge 5129 paper 5129/11 was a grade A in November 2025.
- 23 out of 40 on Cambridge 5129 paper 5129/11 was a grade B in November 2025.
- 19 out of 40 on Cambridge 5129 paper 5129/11 was a grade C in November 2025.
- 17 out of 40 on Cambridge 5129 paper 5129/11 was a grade D in November 2025.
- 15 out of 40 on Cambridge 5129 paper 5129/11 was a grade E in November 2025.
Paper 5129/12
- 29 out of 40 on Cambridge 5129 paper 5129/12 was a grade A in November 2025.
- 25 out of 40 on Cambridge 5129 paper 5129/12 was a grade B in November 2025.
- 22 out of 40 on Cambridge 5129 paper 5129/12 was a grade C in November 2025.
- 19 out of 40 on Cambridge 5129 paper 5129/12 was a grade D in November 2025.
- 17 out of 40 on Cambridge 5129 paper 5129/12 was a grade E in November 2025.
Paper 5129/21
- 51 out of 80 on Cambridge 5129 paper 5129/21 was a grade A in November 2025.
- 40 out of 80 on Cambridge 5129 paper 5129/21 was a grade B in November 2025.
- 28 out of 80 on Cambridge 5129 paper 5129/21 was a grade C in November 2025.
- 24 out of 80 on Cambridge 5129 paper 5129/21 was a grade D in November 2025.
- 19 out of 80 on Cambridge 5129 paper 5129/21 was a grade E in November 2025.
Paper 5129/22
- 48 out of 80 on Cambridge 5129 paper 5129/22 was a grade A in November 2025.
- 37 out of 80 on Cambridge 5129 paper 5129/22 was a grade B in November 2025.
- 25 out of 80 on Cambridge 5129 paper 5129/22 was a grade C in November 2025.
- 21 out of 80 on Cambridge 5129 paper 5129/22 was a grade D in November 2025.
- 16 out of 80 on Cambridge 5129 paper 5129/22 was a grade E in November 2025.
Paper 5129/31
- 25 out of 40 on Cambridge 5129 paper 5129/31 was a grade A in November 2025.
- 20 out of 40 on Cambridge 5129 paper 5129/31 was a grade B in November 2025.
- 15 out of 40 on Cambridge 5129 paper 5129/31 was a grade C in November 2025.
- 12 out of 40 on Cambridge 5129 paper 5129/31 was a grade D in November 2025.
- 9 out of 40 on Cambridge 5129 paper 5129/31 was a grade E in November 2025.
Paper 5129/32
- 25 out of 40 on Cambridge 5129 paper 5129/32 was a grade A in November 2025.
- 20 out of 40 on Cambridge 5129 paper 5129/32 was a grade B in November 2025.
- 15 out of 40 on Cambridge 5129 paper 5129/32 was a grade C in November 2025.
- 12 out of 40 on Cambridge 5129 paper 5129/32 was a grade D in November 2025.
- 9 out of 40 on Cambridge 5129 paper 5129/32 was a grade E in November 2025.