Performance analysis on the recently released exams show massive disparities across the country. Significant deviations in subject scores are particularly evident in the 2022 KCSE grading system per subject and county.
Summarised are grade distributions per county and grading scales for each subject.
2022 KCSE grading system per subject & county
Enlisted are secondary schools that produced the highest number of A-plain students.
Top grade academic centres are coincidentally the best at the national level.
| School | A-students |
| Mangu High | 82 |
| Alliance High | 72 |
| Maranda High | 68 |
| Kapsabet High | 52 |
| Kanga High | 49 |
| Maseno School | 48 |
| Kenya High | 41 |
| St Antony Kitale | 41 |
| Alliance Girls | 39 |
| Nairobi School | 39 |
| Moi High Kabarak | 33 |
| Cardinal Otunga | 28 |
| Nyambaria School | 28 |
| Meru High | 22 |
| Kisii High School | 22 |
| Pangani Girls | 20 |
2022 A-grade distribution in Nyanza province
| County | A-students |
| Siaya | 72 |
| Migori | 61 |
| Kisumu | 59 |
| Homabay | 47 |
| Nyamira | 30 |
| Kisii | 51 |
2022 KNEC overall grading system
| Marks | Grade | Points |
| 81 – 84 | A | 12 |
| 74 – 80 | A- | 11 |
| 67 – 73 | B+ | 10 |
| 60 – 66 | B | 9 |
| 53 – 59 | B- | 8 |
| 46 – 52 | C+ | 7 |
| 39 – 45 | C | 6 |
| 32 – 38 | C- | 5 |
| 25 – 31 | D+ | 4 |
| 18 – 24 | D | 3 |
| 11 – 17 | D- | 2 |
| 7 – 10 | E | 1 |
KCSE grading system per subject
| Subject | Marks |
| Maths | 57 |
| English | 78 |
| Kiswahili | 78 |
| Chemistry | 65 |
| Biology | 78 |
| Physics | 60 |
| Geography | 65 |
| Business Studies | 85 |
| Agriculture | 80 |
| Computer Studies | 75 |
| History & Government | 89 |
| CRE | 91 |
i. History & Government grading scale
| Marks | Grade | Points |
| 83 – 100 | A | 12 |
| 73 – 88 | A- | 11 |
| 74 – 82 | B+ | 10 |
| 68 – 73 | B | 9 |
| 61 – 67 | B- | 8 |
| 55- 60 | C+ | 7 |
| 50 – 54 | C | 6 |
| 45 – 49 | C- | 5 |
| 40 – 44 | D+ | 4 |
| 35 – 39 | D | 3 |
| 30 – 34 | D- | 2 |
| 0 – 29 | E | 1 |
ii. Geography grading scale
| Marks | Grade | Points |
| 65 – 100 | A | 12 |
| 60 – 64 | A- | 11 |
| 55 – 59 | B+ | 10 |
| 50 – 54 | B | 9 |
| 45 – 49 | B- | 8 |
| 55- 60 | C+ | 7 |
| 50 – 54 | C | 6 |
| 45 – 49 | C- | 5 |
| 40 – 44 | D+ | 4 |
| 35 – 39 | D | 3 |
| 30 – 34 | D- | 2 |
| 0 – 29 | E | 1 |
iii. KCSE grading scale for CRE
| Marks | Grade | Points |
| 91 – 100 | A | 12 |
| 85 – 90 | A- | 11 |
| 80 – 84 | B+ | 10 |
| 75 – 79 | B | 9 |
| 70 – 74 | B- | 8 |
| 65 – 69 | C+ | 7 |
| 60 – 64 | C | 6 |
| 55 – 59 | C- | 5 |
| 50 – 54 | D+ | 4 |
| 45 – 49 | D | 3 |
| 40 – 44 | D- | 2 |
| 0 – 9 | E | 1 |
iv. Agriculture & business studies grading scale
| Marks | Grade | Points |
| 80 – 100 | A | 12 |
| 75 – 79 | A- | 11 |
| 70 – 74 | B+ | 10 |
| 65 – 69 | B | 9 |
| 60 – 64 | B- | 8 |
| 55 – 59 | C+ | 7 |
| 50 – 54 | C | 6 |
| 45 – 49 | C- | 5 |
| 40 – 44 | D+ | 4 |
| 35 – 39 | D | 3 |
| 30 – 34 | D- | 2 |
| 0 – 29 | E | 1 |
The grading scale for Math was the fairest and CRE the most competitive.
2022 KCSE grading system per subject and distribution of grades reveal improved performance from the previous years.
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