Buckinghamshire 11+ Data Platform
Know your child's chances before the test.
9 years of Buckinghamshire Secondary Transfer Test results — 78,000+ individual scores, 544 feeder school pass rates, catchment distances, and selection review outcomes. All from official TBGS consortium data.
Common questions
Every question has a data-backed answer.
Live data
A sample of what's inside.
A-Level Heatmap
A*/A % by school and subject
| School | Maths | Chemis. | Biology | Econom. | Physics | Psycho. |
|---|---|---|---|---|---|---|
| Aylesbury GS | 58% | 42% | 31% | 64% | 44% | 14% |
| Aylesbury HS | 53% | 41% | 51% | 36% | 31% | 44% |
| Beaconsfield HS | 56% | 51% | 53% | 57% | 57% | 34% |
| Burnham GS | 52% | 44% | 38% | 41% | 39% | 19% |
| Chesham GS | 62% | 63% | 66% | 55% | 57% | 48% |
| Dr Challoner's GS | 76% | 55% | 68% | 67% | 67% | — |
Catchment Distances
Aylesbury Grammar — furthest offered place (miles)
Find Your School
Search 544 feeder + 13 grammar schools
Popular
Selection Review Success by Score
Scored below 121? See your chances of qualifying through review.
Top Feeder Schools by Pass Rate
544 schools ranked · 2025 data
| # | School | Pass Rate | Avg Score |
|---|---|---|---|
| 1 | Reddiford School (Pinner)Private | 100.0% | 141.2 |
| 2 | Brooklands Farm Primary School (Milton Keynes)State | 100.0% | 140.0 |
| 3 | Greenwood Primary School (Northolt)State | 100.0% | 138.8 |
| 4 | Cannon Lane Primary School (Pinner)State | 100.0% | 137.1 |
| 5 | St Bernards Prep School (Slough)Private | 100.0% | 136.7 |
What's covered
Grammar & feeder performance data analysed like never before.
Feeder School Rankings
Which primary schools send the most children to grammar school? See pass rates, year-on-year trends, and score distributions for 544 feeder schools — state and private.
Explore →Grammar School Profiles
Attainment 8, Progress 8, A-Level subject breakdowns, grade distributions, admissions demand, and historical catchment distances for every Buckinghamshire grammar.
Explore →Interactive Maps
Enter your postcode to see distance lines to every grammar school. Catchment rings show the furthest offered place each year — so you know where you stand.
Explore →Selection Review Outcomes
If your child scores below the qualifying mark, selection review is the next step. We track success rates by score across 8 years so you can see the odds.
Explore →Score Analytics
Pass rates split by gender and birth month. Score distributions, 9-year trends, and state vs private comparisons across 78,000+ student results.
Explore →11+ Score Leaderboard
The highest STT scores each year across all feeder schools. Filter by year and school type. See where the top performers come from.
Explore →Built on official data
Every figure comes from published sources: TBGS Consortium result publications, DfE School Performance Tables, GIAS school records, Ofsted ratings, and Buckinghamshire Council allocation profiles. ElevenReady is an independent project — not affiliated with any school, council, or testing body.
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