Boston High School
Academy converter · sixth form · 837 pupils
95% stayed in education · Attainment 8 58.8
Academy converter
Kesteven and Sleaford High School Selective Academy
- Pupils on roll
- 747of 822 places
- Free school meals
- 10.2%
- Year 11 cohort 2025
- 114
- Ofsted
- Inspected, 19 November 2024Read the Ofsted report
Results below include those reported under the school’s previous registration: Kesteven and Sleaford High School (URN 120633, until 10 April 2014).
What the data says
Of the 127 pupils who finished Year 11 at Kesteven and Sleaford High School Selective Academy in 2023, 80% stayed on in Kesteven and Sleaford High School Selective Academy’s own sixth form (Lincolnshire average 40%), 14% went to a further education college and 1% started an apprenticeship.
Among the 60 students who left the sixth form in 2023, 70% went to university (Lincolnshire 39%, England 37%), and 47% of level 3 students progressed to one of the most selective universities, against 19% nationally.
GCSE results in 2025 were well above the national picture: Attainment 8 of 61.8 against 46.1 across England and 45.1 in Lincolnshire, with 85% of pupils getting grade 5 or above in both English and maths (England 45%) — as a selective grammar school, Kesteven and Sleaford High School Selective Academy admits pupils by test at 11, which drives these figures.
German is unusually popular at GCSE: 39% of the year group took it, against 5% of pupils across England.
Where pupils went after Year 11
Destinations of the 2023 Year 11 leavers, measured the following year: the share in a sustained place for at least two terms. Compared with all state-funded schools in Lincolnshire and England.
School sixth formSixth form collegeFurther education collegeOther educationApprenticeshipEmploymentNo sustained destination
| Measure | This school | Lincolnshire | England |
|---|---|---|---|
| Pupils in the cohort | 127 | 8,198 | 607,348 |
| Any sustained destination | 98% | 92% | 92% |
| Stayed in education | 95% | 86% | 86% |
| — school sixth form | 80% | 40% | 34% |
| — sixth form college | 0% | 4% | 13% |
| — further education college | 14% | 41% | 37% |
| — other education | 1% | 2% | 2% |
| Apprenticeship | 1% | 4% | 3% |
| Employment | 2% | 3% | 3% |
| No sustained destination | 0% | 6% | 6% |
| Destination unknown | 2% | 2% | 3% |
Where students went after sixth form
Destinations of students who finished 16–18 study in 2023, measured the following year.
University (higher education)Further educationOther educationApprenticeshipEmploymentNo sustained destination
| Measure | This school | Lincolnshire | England |
|---|---|---|---|
| Students in the cohort | 60 | 6,057 | 541,441 |
| Any sustained destination | 93% | 82% | 79% |
| University (higher education) | 70% | 39% | 37% |
| — most selective universities (top third), of level 3 students | 47% | 19% | 19% |
| Further education | 2% | 5% | 5% |
| Apprenticeship | 3% | 9% | 7% |
| Employment | 18% | 29% | 28% |
| No sustained destination | 7% | 14% | 16% |
GCSE results 2025
| Measure | This school | Lincolnshire | England |
|---|---|---|---|
| Attainment 8 (average points per pupil) | 61.8 | 45.1 | 46.1 |
| Grade 5 or above in English and maths | 85% | 42% | 45% |
| Grade 4 or above in English and maths | 98% | 63% | 65% |
| Entered the English Baccalaureate subjects | 92% | 37% | 41% |
| EBacc average point score | 5.93 | 3.98 | 4.09 |
| Disadvantaged pupils in the cohort | 8% | 27% | 28% |
| Attainment 8 — disadvantaged pupils | 62.6 | 33.8 | 34.9 |
| Attainment 8 — other pupils | 61.7 | 49.2 | 50.4 |
| Pupils with high prior attainment (Key Stage 2) | — | — | — |
| English as an additional language | 3% | 12% | 19% |
Progress 8 is not available for 2025 and 2026: these cohorts had no Key Stage 2 tests in 2020 and 2021, so there is no baseline. Attainment 8 shows results without taking pupils’ starting points into account.
Subjects taken at GCSE
Entries in 2025 as a share of the Year 11 cohort, and the share of entries graded 7–9 and 4–9, compared with all entries in England.
| Subject | Entries | Share of cohort | England | Grades 7–9 | England | Grades 4–9 |
|---|---|---|---|---|---|---|
| English Language | 114 | 100% | 89% | 35% | 20% | 96% |
| Mathematics | 114 | 100% | 88% | 31% | 22% | 98% |
| English Literature | 113 | 99% | 86% | 34% | 21% | 97% |
| Religious Studies | 107 | 94% | 31% | 32% | 32% | 87% |
| Physics | 74 | 65% | 23% | 28% | 46% | 95% |
| Biology | 74 | 65% | 23% | 30% | 45% | 97% |
| Chemistry | 74 | 65% | 23% | 30% | 47% | 96% |
| Geography | 73 | 64% | 41% | 51% | 25% | 97% |
| French | 64 | 56% | 18% | 31% | 29% | 89% |
| History | 61 | 54% | 41% | 49% | 26% | 97% |
| Business Studies | 54 | 47% | 18% | 30% | 20% | 94% |
| German | 44 | 39% | 5% | 41% | 33% | 93% |
| Combined Science | 40 | 35% | 65% | 13% | 9% | 88% |
| Graphic Communication | 33 | 29% | 1% | 39% | 23% | 85% |
| Drama | 25 | 22% | 7% | 32% | 27% | 100% |
| Physical Education | 21 | 18% | 11% | 48% | 24% | 100% |
| Food Preparation and Nutrition | 18 | 16% | 8% | 44% | 21% | 94% |
| Fine Art | 13 | 11% | 9% | 62% | 28% | 100% |
| Design and Technology | 13 | 11% | 11% | 77% | 23% | 100% |
| Computer Science | 10 | 9% | 13% | 50% | 30% | 100% |
| Polish | 3 | 3% | 1% | — | 84% | — |
| Arabic | 1 | 1% | 1% | — | 47% | — |
Technical awards and other Key Stage 4 qualifications
| Subject | Entries | Share of cohort | England |
|---|---|---|---|
| Additional Mathematics FSMQ | 2 | 3% | — |
| Hospitality / Catering Studies | 1 | 1% | — |
A levels and other level 3 courses
| Measure | This school | Lincolnshire | England |
|---|---|---|---|
| Students at the end of 16–18 study | 122 | — | — |
| — of whom A level students | 71 | 2,919 | 261,341 |
| Average A level grade | B- | C+ | B- |
| Average points per A level entry | 37.80 | 34.44 | 35.00 |
| Average grade, best 3 A levels | B | B- | B- |
| AAB or better with two facilitating subjects | 20% | 18% | 18% |
| Average grade, applied general courses | — | — | — |
| Average grade, T levels | — | — | — |
A level subjects
Entries as a share of A level students, compared with the share across England.
| Subject | Entries | Share of cohort | England |
|---|---|---|---|
| Biology | 29 | 41% | 20% |
| Chemistry | 29 | 41% | 17% |
| Psychology | 20 | 28% | 23% |
| Geography | 16 | 23% | 10% |
| Mathematics | 15 | 21% | 31% |
| History | 14 | 20% | 13% |
| Photography | 8 | 11% | 3% |
| English Literature | 8 | 11% | 11% |
| Sociology | 8 | 11% | 13% |
| Religious Studies | 7 | 10% | 4% |
| Business Studies | 6 | 8% | 13% |
| English Language | — | — | 4% |
| English Language and Literature | — | — | 2% |
| French | — | — | 1% |
| German | — | — | 0% |
| Law | — | — | 4% |
| Further Mathematics | — | — | 5% |
| Media Studies | — | — | 4% |
| Music | — | — | 0% |
| Physics | — | — | 12% |
| Fine Art | — | — | 3% |
| Computer Science | — | — | 5% |
| Drama | — | — | 2% |
| Product Design | — | — | 2% |
| D and T Textiles Technology | — | — | 0% |
Applied, technical and other level 3 courses
| Subject | Qualification | Entries | Share of cohort | England |
|---|---|---|---|---|
| Study Skills | Extended Project (Diploma) | 14 | 20% | — |
| Multimedia | OCR Cambridge Technical Extended Certificate at Level 3 | — | — | — |
| Applied Sciences | BTEC National Extended Certificate L3 - Band F - P-D* | — | — | — |
| Social Science | VRQ Level 3 | — | — | — |
| English Language | GCE AS level (All) | — | — | — |
| English Language | GCE AS level (Not continued to A2) | — | — | — |
| Business Studies | BTEC National Extended Certificate L3 - Band F - P-D* | — | — | — |
Other secondary schools in Lincolnshire
Bourne Academy
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88% stayed in education · Attainment 8 47.2
Bourne Grammar School
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97% stayed in education · Attainment 8 68.6
Branston Community Academy
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Caistor Grammar School
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97% stayed in education · Attainment 8 69.8
Caistor Yarborough Academy
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81% stayed in education · Attainment 8 43.8
Sources: Department for Education school and college performance tables 2024/2025 (Key Stage 4 and 16–18 results, subject entries, destination measures for 2023 leavers); Get Information About Schools register as at 19 September 2026; Ofsted management information as at 31 August 2026. Small numbers are suppressed by DfE and shown as “—”. How to read these figures.