Specialist tuition for the Trafford consortium GL Assessment test — tailored to AGSB entry 2026
Book a Free ConsultationAltrincham Grammar School for Boys (AGSB) is one of England's highest-achieving state grammar schools, consistently ranked among the top schools nationally for GCSE and A Level results. Located in Altrincham, Greater Manchester, it is a member of the Trafford Grammar School Consortium alongside Altrincham Grammar School for Girls, Sale Grammar School, Stretford Grammar School and Urmston Grammar School. Entry to AGSB at Year 7 is through the Trafford consortium GL Assessment entrance examination, which takes place in September of Year 6. With 202 Year 7 places and consistent oversubscription from a large and highly prepared applicant pool, thorough preparation — ideally beginning in Year 4 or Year 5 — is essential for families who want to give their son the best possible chance of a place.
The table below sets out the essential facts about AGSB and the key dates for 2026/27 admissions, based on information published by the Trafford consortium and Altrincham Grammar School for Boys.
| Detail | Information |
|---|---|
| School type | State selective grammar school — boys only, Year 7–13, Altrincham |
| Year 7 places | 202 places |
| Consortium | Trafford Grammar School Consortium (GL Assessment) |
| Test format | Two papers: Verbal Reasoning + Non-Verbal Reasoning + Mathematics |
| Registration opens | 12 noon, Thursday 23 April 2026 |
| Registration closes | 12 noon, Friday 19 June 2026 |
| Entrance examination | Monday 14 September 2026 |
| Results emailed | Mid-October 2026 |
| LA application deadline | Saturday 31 October 2026 |
| Priority postcodes | WA13, WA14, WA15, M33, M23 |
| Pupil Premium band | Score 324–333 (reserved Pupil Premium places) |
| General threshold | ~334+ (varies year-on-year) |
Registration must be completed through the Trafford GL Assessment online portal. Families who miss the 19 June 2026 registration deadline will not be able to sit the September examination and will need to wait until after 1 March 2027 to apply for a late test. This makes early registration critical — do not leave it to the final days of the window.
The Trafford consortium entrance examination is delivered by GL Assessment and consists of two papers, each approximately one hour in length. The test is the same for all five Trafford consortium schools, meaning that a boy who registers for the AGSB examination is sitting the same test as candidates for AGSG, Sale Grammar, Stretford Grammar and Urmston Grammar. A single registration covers one school only, however — families wishing to apply to multiple Trafford consortium schools must register separately with each school.
The two papers together assess three distinct areas of ability:
| Component | What It Tests |
|---|---|
| Verbal Reasoning | Vocabulary, word meaning, analogies, verbal comprehension and logical word patterns |
| Non-Verbal Reasoning | Shape sequences, pattern identification, spatial awareness, codes and visual analogies |
| Mathematics | Number, measurement, geometry and statistics up to the start of Year 6 KS2 curriculum |
All questions in the GL Assessment test are multiple-choice. There is no extended writing, no essay and no mental arithmetic section with spoken questions. The test is designed to be curriculum-fair — that is, content knowledge beyond the KS2 mathematics programme of study is not required for the mathematics section. The verbal and non-verbal reasoning components, however, benefit substantially from familiarity with question types, as these formats are not typically encountered in primary school lessons and can appear unfamiliar and confusing to children who have not practised them.
GL Assessment publishes free familiarisation materials on their website, and these should form the foundation of any early preparation. They illustrate the types of questions used but are not past papers and do not reflect the precise level of difficulty that will appear in the live test. Working through familiarisation materials alongside a structured tuition programme that introduces progressively harder questions is the most effective approach.
Altrincham Grammar School for Boys is one of the most competitive grammar schools in the north of England. Despite having 202 Year 7 places — a relatively large intake for a selective grammar — the school is consistently heavily oversubscribed, attracting applicants from across Greater Manchester and beyond. The combination of outstanding academic results, a strong co-curricular programme and the school's location in an affluent, educationally engaged area means that the effective competitive threshold is high and rises year-on-year as the applicant pool grows.
Understanding the admissions criteria is important for all families. Once a boy has achieved the qualifying standard — the minimum score at which the school judges a pupil to be capable of accessing the grammar curriculum — the school then applies its oversubscription criteria. The first priority goes to Pupil Premium pupils scoring in the 324–333 band (a reserved set of places). After that, priority is given to pupils within the defined priority postcodes: WA13, WA14, WA15, M33 and M23. Families from outside these postcodes need to score above approximately 334 to have a realistic chance of a place in most years, though this is not a fixed cut-off and varies with the cohort.
This postcode effect is significant and frequently misunderstood. A boy scoring 330 from WA14 may receive a place; a boy scoring the same from a non-priority area may not. Families should factor this into both their preparation strategy and their secondary school application — applying to multiple Trafford consortium schools (AGSG for girls is not applicable here, but Stretford and Urmston Grammar are co-educational alternatives) and considering Sale Grammar School as well.
AGSB's academic results justify the competition. The school consistently achieves exceptional outcomes at both GCSE and A Level, with a very high proportion of pupils progressing to Russell Group universities each year, including significant numbers to Oxford and Cambridge. The sixth form at AGSB is particularly strong, and the school's culture of ambition and academic challenge is well established through all year groups from Year 7.
Effective preparation for AGSB and the Trafford consortium test requires structured, progressive work that builds over time rather than a short intensive burst immediately before the September examination. The test measures developed reasoning ability — and while practice with question types improves performance, no amount of last-minute cramming can substitute for genuine fluency in mathematical problem solving and the logical pattern recognition required by the verbal and non-verbal reasoning papers.
The following preparation timeline represents the approach that Leading Tuition recommends for families targeting AGSB.
Year 4 (Optional Early Start): Families who want maximum preparation time can begin in Year 4. At this stage, the focus should be entirely on building enjoyment and fluency rather than exam-style practice. Strengthen your son's core maths through games, puzzles and problem-solving activities. Encourage wide reading across fiction and non-fiction — a strong vocabulary is the single most powerful predictor of performance in the verbal reasoning component. Introduce very light non-verbal reasoning exploration using age-appropriate puzzle books. No timed tests at this stage.
Year 5, September (Structured Preparation): This is the ideal entry point for most families. Begin systematic work on all three test areas using age-appropriate GL Assessment-style question banks. Work on verbal reasoning weekly — it requires consistent exposure over a long period to develop the pattern recognition and vocabulary depth that the hardest questions demand. Build maths fluency beyond the standard school curriculum in multi-step problem solving and the areas of geometry and number that appear in the test. Introduce non-verbal reasoning with explanation rather than timed practice — understanding why answers are correct builds the underlying skill more effectively than drilling questions under time pressure.
Year 5, January onward: Increase session frequency and begin introducing timed section practice. Track performance against difficulty levels to identify specific weak areas. At this stage, you should know whether your son finds verbal or non-verbal reasoning more challenging, and preparation should weight accordingly. Begin working on exam-standard questions — not just the familiarisation materials, but harder practice sets from reputable 11+ publishers.
Year 6, September–June: This is the final phase. Run full timed mock papers under exam conditions at least monthly. The experience of sitting two consecutive one-hour papers under time pressure is itself a skill, and many children underperform in the actual test due to unfamiliarity with exam conditions rather than lack of ability. Ensure your son knows strategies for managing time, skipping difficult questions and not spending too long on any single item. Work on remaining weak areas with targeted practice, not broad revision. Confirm your registration by the 19 June 2026 deadline.
Summer before the exam: Maintain a light maintenance schedule during the summer holidays — two to three sessions per week of mixed practice is sufficient. Avoid burning out by over-preparing in the final four weeks. The examination is on 14 September 2026, only days after the school year begins, so boys need to be exam-ready before the summer starts.
Preparing for AGSB 11+ Entry?
Leading Tuition provides specialist one-to-one tuition tailored to the Trafford consortium GL Assessment format. Our tutors work through the verbal reasoning, non-verbal reasoning and mathematics components with each student individually, targeting their specific gaps with a structured progression plan.
Rated 4.8/5 on Trustpilot. 95%+ offer rate at selective schools in 2025.
Book a Free Consultation Message us on WhatsAppThe Trafford consortium GL Assessment test produces a standardised score. Standardisation means the raw mark is adjusted to account for the age of the pupil at the time of the test — a boy born in September will have had nearly a full extra year of development compared to one born in August of the same year, and the standardisation process is designed to correct for this age effect. The standardised score is what appears in the result email and is what admissions decisions are based on.
There is no published passing score for AGSB, but in practice there is a qualifying standard below which the school does not consider a pupil able to access the selective curriculum. This qualifying standard has historically been around 121 on the GL Assessment standardised scale — but the precise figure is not officially published and may shift year-on-year. The scores quoted in terms of threshold (334+) refer to the total across the two papers combined, which is the format used by Trafford schools in their admissions information.
Once a boy achieves the qualifying standard, his position in the admissions ranking depends primarily on his score and his postcode. Pupil Premium pupils with scores between 324 and 333 are prioritised in a reserved band of places ahead of non-Pupil Premium applicants with equivalent scores. This is a deliberate widening participation measure. After Pupil Premium priority, places are allocated in score order within the priority postcode areas (WA13, WA14, WA15, M33, M23), then in score order for applicants outside the priority area. Distance from the school is the final tie-breaker.
For families outside the priority postcodes, the implications are clear: only very high scores — typically well above 334 — are likely to result in a place, and even then it depends on the strength of the overall cohort. Families in this position should consider whether to prioritise tuition to maximise their son's score, or whether to focus preparation more broadly across other schools in their area.
Altrincham Grammar School for Boys offers a comprehensive and academically challenging education from Year 7 through to Year 13, including an extensive sixth form. The school has approximately 1,400 pupils across all year groups and maintains strong results at both GCSE and A Level, consistently appearing in the top tier of state school performance tables nationally.
The curriculum at AGSB is broad and stretching. In Years 7 to 9, boys study all the core National Curriculum subjects alongside additional provision including Latin, and co-curricular enrichment through music, drama, sport and debating. The school has a strong record in national academic competitions and Olympiads across mathematics, science and humanities. At GCSE, boys take a conventional suite of subjects with the expectation of strong results across all, and most pupils proceed to A Level study in the sixth form, with a significant proportion progressing to Russell Group and Oxbridge universities.
Beyond academics, AGSB has a rich sporting tradition — particularly in rugby, cricket and athletics — and an active performing arts programme. The school regularly participates in regional and national competitions across multiple disciplines, and the breadth of extracurricular provision means boys are genuinely stretched and engaged in a wide range of activities throughout their time at the school. Parents who are considering AGSB as a first-choice school often cite the school's culture of high expectations, the quality of teaching, and the peer environment — a cohort of ambitious, academically motivated boys — as the defining attractions.
See also our guides to Altrincham Grammar School for Girls, Stretford Grammar School and Urmston Grammar School for other Trafford consortium options, and our general 11+ Tuition page for an overview of how we support families across all selective schools.
Most families preparing for Altrincham Grammar School for Boys begin structured preparation in Year 4 or early Year 5. The Trafford consortium test covers verbal reasoning, non-verbal reasoning and mathematics across two timed papers, each approximately one hour long. Starting in Year 4 gives families time to build genuine fluency rather than surface familiarity with question types. Year 5 from September is still a very effective start point, provided practice is consistent and builds in volume and difficulty over time. Starting in Year 6 September is possible but leaves limited time to address meaningful gaps, particularly in verbal reasoning and multi-step problem solving.
Altrincham Grammar School for Boys uses the Trafford consortium GL Assessment test, which produces a standardised score. The general competitive threshold has historically been around 334 or above for pupils in non-priority postcodes. Pupils qualifying under the Pupil Premium band typically require a score in the range of 324–333. Because the school is consistently oversubscribed, postcode priority is applied after the qualifying standard is met — pupils in priority postcodes WA13, WA14, WA15, M33 and M23 receive preference over pupils from outside the priority area with equivalent scores. These thresholds vary year-on-year depending on the applicant cohort.
For September 2027 entry, online registration opened at noon on 23 April 2026 and closes at noon on 19 June 2026. The entrance examination takes place on Monday 14 September 2026. Results are emailed in mid-October 2026. The local authority secondary school application must be submitted by 31 October 2026. Families should register directly via the Trafford GL Assessment portal and ensure all documentation is submitted before the June registration deadline.
The Trafford consortium GL Assessment test consists of two papers, each approximately one hour in length. Together they assess verbal reasoning (vocabulary, word relationships and verbal comprehension), non-verbal reasoning (pattern sequences, shape relationships and spatial awareness) and mathematics (covering the KS2 curriculum up to the start of Year 6, including number, geometry, measurement and statistics). There is no English creative writing or extended writing component. All questions are multiple-choice or short-answer format.
Yes. AGSB is significantly oversubscribed, so once the qualifying standard is met, the school applies admissions criteria based on distance and postcode priority. Pupils in the priority postcodes — WA13, WA14, WA15, M33 and M23 — are given preference over pupils from outside the priority area with equivalent scores. In recent years, pupils from outside the priority postcodes have needed to score above the general threshold (around 334+) to stand a realistic chance of a place. Families from outside the priority area should consider applying to multiple Trafford consortium schools simultaneously.
Leading Tuition provides specialist 11+ tuition specifically tailored to the Trafford consortium GL Assessment format used by AGSB. Our tutors are experienced in the verbal reasoning, non-verbal reasoning and mathematics components of the two-paper test, and work with each student to identify and address their specific gaps. We build structured preparation plans that progress from foundational skills to timed exam-standard practice. We are rated 4.8/5 on Trustpilot and have achieved a 95%+ offer rate at selective schools. Book a free consultation to discuss a personalised preparation plan for your son.
Book a free consultation — no obligation, just honest advice tailored to Altrincham Grammar School for Boys entry.
Leading Tuition is rated 4.8/5 on Trustpilot by families across the UK.
Book a Free Consultation