Research edition · Comparison · KCS Wimbledon · Winchester
How do KCS Wimbledon and Winchester compare on GCSE / IGCSE entries at grade 9?
Comparison · GCSE / IGCSE entries at grade 9 · 2022–2023, 2025. Edition of 12 Nov 2026.
The answer
KCS Wimbledon comes out higher than Winchester on the share of GCSE and IGCSE entries awarded grade 9 when the available years are compared.
The figures
- KCS Wimbledon
- Winchester
Each school against the same scale and years.
Exam eras: 2022 (return to exams); 2023–25. The rule beneath the axis marks exam conditions, not schools.
A break in a line means a year has no comparable figure; nothing is estimated. The figures behind the chart are listed below.
| Year | KCS Wimbledon (%) | Winchester (%) | Gap (points) |
|---|---|---|---|
| 2022 | 73 | 58.7 | 14.3 |
| 2023 | 67.2 | 50.5 | 16.7 |
| 2025 | 70.36 | 50 | 20.36 |
Figures to two decimal places at most. A figure known only within the school’s rounding is shown as a range, never as its lower end.
Read this with the answer
- This comparison uses results on the 9–1 scale only. It leaves out older A*–G grades, partial results from the transition between scales and the school’s own combinations of old and new grades. Teacher-assessed years are left out by default.
- Published results describe different groups of pupils, chosen in different ways. They can’t show the effect of attending a school, or what one pupil would achieve.
- Only the years both schools can be compared on are used: 2022, 2023 and 2025. A missing or excluded year is not a zero result.
- Fewer than five shared years, which is too few for the period check: it needs five.
- These figures carry the record’s existing source checks, which are kept apart from background links. This edition didn’t reopen every original publication.
- Historical results: the latest shared year is 2025. They can’t show 2026 results.
4 of the 8 recorded figures behind this comparison have an exact source check for that field and year; 4 are recorded or calculated figures with their support set out in Record details. This is not a fresh check of every source.
With research access
What the study means, and what to ask next
With research access, read our interpretation of the differences between the schools, see whether the choice of years changes the answer, and prepare questions for each school. It is added to your briefing with its sources, dates and qualifications.
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Shown again, with the terms, before you pay
Where the figures come from
Each record gives the full definition, the documents it came from and what we checked.
King’s College School, Wimbledon · 2022 · GCSE results · 2022 · 9-1
Checked against the original: top two bands and top three bands. Not yet checked: candidates, entries and top band.
King’s College School, Wimbledon · 2022 · GCSE results · 9–1 detail · 2022
This figure hasn’t been fully checked against the original yet.
Winchester College · 2022 · GCSE results · 2022 · 9-1
Checked against the original: 7 figures, including A*–A, entries and grade 9.
King’s College School, Wimbledon · 2023 · GCSE results · 2023 · 9-1
Checked against the original: top two bands and top three bands. Not yet checked: candidates, entries and top band.
King’s College School, Wimbledon · 2023 · GCSE results · 9–1 detail · 2023
This figure hasn’t been fully checked against the original yet.
Winchester College · 2023 · GCSE results · 2023 · 9-1
Checked against the original: 7 figures, including A*–A, entries and grade 9.
King’s College School, Wimbledon · 2025 · GCSE results · 9–1 detail · 2025
Checked against the original: 5 figures, including candidates, entries and grade 9. Not yet checked: numbered-grade entries.
Winchester College · 2025 · GCSE results · 2025 · 9-1
Checked against the original: A*–A and grade 9. Not yet checked: top band.