Research edition · Comparison · KCS Wimbledon · Radley
How do KCS Wimbledon and Radley compare on A-level grades at A*?
Comparison · A-level grades at A* · 2019, 2022, 2025. Edition of 28 Sep 2026.
The answer · Holds up
Over the 3 years we can compare (2019, 2022, 2025), KCS Wimbledon is ahead by a typical 25.7 points; the one year range we can test agrees.
The figures
- KCS Wimbledon
- Radley
Each school against the same scale and years.
Exam eras: 2019; 2020–21 (grades set by schools); 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 (%) | Radley (%) | Gap (points) |
|---|---|---|---|
| 2019 | 46.5 | 20.8 | 25.7 |
| 2022 | 68.1 | 49 | 19.1 |
| 2025 | 50.75 | 23 | 27.75 |
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
- A-level-only series. IB, Pre-U, mixed qualifications and school-defined combined definitions are excluded. CAG/TAG years 2020–21 are excluded by default; unresolved competing values are retained in the evidence record but omitted here.
- 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: 2019, 2022 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.
5 of the 6 recorded figures behind this comparison have an exact source check for that field and year; 1 is a recorded or calculated figure with its 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
Research access adds what the comparison shows once it is read year by year, whether the answer holds when the period changes, and the questions to take to each school. It is added to your briefing with its sources, dates and qualifications.
Research access isn’t on sale yet. The prices are proposed, nothing can be bought or paid on this site, and no opening date is set.
Proposed; not yet on sale
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 · 2019 · A-level results · 2019
Checked against the original: A*. Not yet checked: A*–A, A*–B, candidates and entries.
Radley College · 2019 · A-level results · 2019 · A level · A*–E
Checked against the original: A*, A*–A, A*–B and entries. Not yet checked: pass.
King’s College School, Wimbledon · 2022 · A-level results · 2022
Checked against the original: A*. Not yet checked: A*–A, A*–B, candidates and entries.
Radley College · 2022 · A-level results · 2022 · A level · A*–E
This figure hasn’t been fully checked against the original yet.
King’s College School, Wimbledon · 2025 · A-level results · 2025
Checked against the original: A*, candidates and entries. Not yet checked: A*–A, A*–B and A-level pathway pupils.
Radley College · 2025 · A-level results · 2025 · A level · A*–E
Publications differ on A*–A. Checked against the original: A*, A*–B and entries.