Research edition · Comparison · KCS Wimbledon · Radley

How do KCS Wimbledon and Radley compare on A*–A or equivalent, all sixth-form exams?

Comparison · A*–A or equivalent, all sixth-form exams · 2019, 2022–2023. Edition of 28 Sep 2026.

The answer · Holds up

Over the 3 years we can compare (2019, 2022, 2023), KCS Wimbledon is ahead by a typical 22.5 points; the one year range we can test agrees.

Measure: Share of all A-level, Pre-U and IB Higher Level entries graded A*–A, Pre-U D1–D3 or IB HL 7–6. Years: 2019, 2022–2023.

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The figures

A*–A or equivalent, all sixth-form exams · 2019–2023
  • KCS Wimbledon
  • Radley
A*–A or equivalent, all sixth-form exams, 2019–2023, on a scale of 40% to 100%. KCS Wimbledon: 3 years (2019, 2022, 2023), latest 84.5% in 2023; circle marker, solid; Radley: 3 years (2019, 2022, 2023), latest 62.0% in 2023; square marker, long dashes. Each point links to its source record; the exact values are listed below the chart. Exam eras: 2019; 2020–21 (grades set by schools); 2022 (return to exams); 2023. The rule beneath the axis marks exam conditions, not schools.KCS Wimbledon 2019: 84.6%KCS Wimbledon 2022: 95.6%KCS Wimbledon 2023: 84.5%Radley 2019: 60.0%Radley 2022: 77%Radley 2023: 62.0%

Each school against the same scale and years.

KCS Wimbledon
A*–A or equivalent, all sixth-form exams, 2019–2023, on a scale of 40% to 100%. KCS Wimbledon: 3 years (2019, 2022, 2023), latest 84.5% in 2023; circle marker, solid. Each point links to its source record; the exact values are listed below the chart. Exam eras: 2019; 2020–21 (grades set by schools); 2022 (return to exams); 2023. The rule beneath the axis marks exam conditions, not schools.KCS Wimbledon 2019: 84.6%KCS Wimbledon 2022: 95.6%KCS Wimbledon 2023: 84.5%
Radley
A*–A or equivalent, all sixth-form exams, 2019–2023, on a scale of 40% to 100%. Radley: 3 years (2019, 2022, 2023), latest 62.0% in 2023; square marker, long dashes. Each point links to its source record; the exact values are listed below the chart. Exam eras: 2019; 2020–21 (grades set by schools); 2022 (return to exams); 2023. The rule beneath the axis marks exam conditions, not schools.Radley 2019: 60.0%Radley 2022: 77%Radley 2023: 62.0%

Exam eras: 2019; 2020–21 (grades set by schools); 2022 (return to exams); 2023. 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.

A*–A or equivalent, all sixth-form exams: KCS Wimbledon and Radley, each year both can be compared. The gap is KCS Wimbledon minus Radley, in percentage points.
YearKCS Wimbledon (%)Radley (%)Gap (points)
201984.576024.57
202295.557718.55
202384.496222.49

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

  • Comparable figure: TSR’s calculation across every A-level, Pre-U principal-subject and IB Higher Level entry, weighted by entries. Cambridge aligns Pre-U D3 with A and UCAS scores IB 6 like an A.
  • 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 2023. 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.
  • Counting A-level A*–A, Pre-U D1–D3 and IB Higher Level 7–6 together is our stated convention, weighted by entries. They are not the same examinations, and entries are not pupils.
  • Historical results: the latest shared year is 2023. They can’t show 2026 results.

0 of the 6 recorded figures behind this comparison have an exact source check for that field and year; 6 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

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.

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Where the figures come from

Each record gives the full definition, the documents it came from and what we checked.

  1. KCS Wimbledon · 2019 · Comparable sixth-form figures · 2019

    Our comparable figure, calculated from the school’s published grades; its page lists each qualification it combines and the records behind them.

  2. Radley · 2019 · Comparable sixth-form figures · 2019

    Our comparable figure, calculated from the school’s published grades; its page lists each qualification it combines and the records behind them.

  3. KCS Wimbledon · 2022 · Comparable sixth-form figures · 2022

    Our comparable figure, calculated from the school’s published grades; its page lists each qualification it combines and the records behind them.

  4. Radley · 2022 · Comparable sixth-form figures · 2022

    Our comparable figure, calculated from the school’s published grades; its page lists each qualification it combines and the records behind them.

  5. KCS Wimbledon · 2023 · Comparable sixth-form figures · 2023

    Our comparable figure, calculated from the school’s published grades; its page lists each qualification it combines and the records behind them.

  6. Radley · 2023 · Comparable sixth-form figures · 2023

    Our comparable figure, calculated from the school’s published grades; its page lists each qualification it combines and the records behind them.

Source evidenceOpen full record ↗