Data Sources
Every figure on ElevenReady comes from a published official source. This page documents exactly where each dataset comes from, what it contains, and how we use it.
Important: ElevenReady is an independent project. We are not affiliated with, endorsed by, or connected to The Buckinghamshire Grammar Schools (TBGS), the Department for Education (DfE), Buckinghamshire Council, Ofsted, or any individual school. The data is sourced from publicly available publications and processed by us. While we strive for accuracy, always verify important information with the original source.
TBGS Consortium — Pupil-Level STT Results by Feeder School
Individual anonymised student scores grouped by primary school and year. Contains STT standardised score, grammar school qualification status, and selection review outcome.
2017–2025
Feeder school pass rates, average scores, individual score distributions, leaderboard
TBGS Consortium — Pupil-Level STT Results by Score
Individual anonymised student records with weighted sub-scores (Maths, Non-verbal, Verbal), head teacher recommendation rating, attitude to learning rating, and selection review outcome.
2017–2025
Selection review analysis, recommendation and attitude to learning insights
TBGS Consortium — Pupil-Level STT Results by Gender
Individual anonymised student records with gender (M/F), area code, STT score, and qualification status.
2017–2025
Gender pass rate breakdowns on analytics page
TBGS Consortium — Pupil-Level STT Results by Ethnicity
Individual anonymised student records with ethnic group code, STT score, and qualification status.
TBGS Consortium — Pupil-Level STT Results by Birth Month
Individual anonymised student records with birth month, STT score, and qualification status.
TBGS Consortium — Selection Review Decisions
Aggregated selection review outcomes by STT score. Shows number of cases heard, qualified, and not qualified at each score point.
2018–2026
Selection review success rate chart and table
DfE — School Performance Tables (KS4)
GCSE results including Attainment 8, Progress 8, Grade 5+ in English and Maths, and EBacc data for all state-funded secondary schools.
2023–24, 2024–25
Grammar school GCSE performance data
DfE — KS5 Institution Subject & Qualification Results
A-Level results by subject and institution, including entries and grade breakdown (A* through U).
2023–24, 2024–25
A-Level subject breakdown, grammar analytics heatmap
GIAS — Get Information About Schools
Official school register with address, postcode, head teacher, pupil numbers, age range, FSM percentage, religious character, trust, and federation details.
March 2026 extract
School profiles, map coordinates, school metadata
Ofsted — Inspection Reports
Latest inspection rating (Outstanding, Good, Requires Improvement, Inadequate) and report URLs.
Latest available
Ofsted badges on school profiles and tables
Buckinghamshire Council — Allocation Profiles
Annual allocation data including Published Admission Numbers (PAN), total and first preferences, and furthest distance offered for each grammar school.
2022–2026
Catchment distance map, admissions demand data on grammar profiles
Data Suppression
In line with TBGS data suppression policy, we do not display individual student scores for school-year groups with fewer than 5 students. This matches the “<5” suppression applied in TBGS aggregate publications to protect against potential identification of individuals.
Head teacher recommendation and attitude to learning ratings are shown in aggregate only (across all schools and years combined) and cannot be linked to individual students or specific schools.
2016 Data Exclusion
Data from the 2016 entry year is excluded from ElevenReady. The 2016 TBGS publications used a different scoring format (raw scores) rather than the standardised scores (60–170) used from 2017 onwards. Including 2016 data would make cross-year comparisons inaccurate.
Questions about our data? Contact hello@educationprints.com