Radley College is one of the most sought-after boys' boarding schools in the country, and for good reason. Situated just outside Abingdon in Oxfordshire, it combines outstanding academic results — including a strong Oxbridge track record — with exceptional music, rowing and a genuinely distinctive school culture. But what many families don't realise until it's too late is that the path to a Radley place begins long before the boy's final year of prep school. The pre-registration process moves early: the ISEB Common Pre-Test is sat in Year 6, and Radley's own admissions FAQs confirm that places are offered to successful candidates in March of Year 6. Understanding this timeline — and preparing accordingly — is what separates families who secure a place from those who miss the window entirely.
Checked September 2026
Radley's own admissions FAQs confirm that Common Entrance is not compulsory: end-of-Year-8 results set which teaching groups a boy joins rather than confirming the place offered in March of Year 6. Radley also states it is an academically selective school taking around 150 boys into Year 9 each year.
Radley is a fully boarding school for boys, taking around 150 boys per year into Year 9. Radley describes itself as an academically selective school, most interested in boys who will make the most of every opportunity and contribute to Radley life. The school looks for boys who will thrive academically and contribute to its distinctive community, known internally through its "Social" house system. Radley's leavers consistently achieve strong A-level results, and Oxbridge entry is a realistic ambition for many pupils. Alongside academics, the school has a national reputation for rowing and a serious commitment to music. If your son is strong in any of these areas, that matters — but it will not compensate for a weak pre-test performance at the registration stage.
The Radley admissions process has two distinct stages, and both require active preparation.
Stage one: Pre-registration and the ISEB Common Pre-Test. Families typically register interest with Radley in Year 5 or early Year 6. Boys then sit the ISEB Common Pre-Test in October or November of Year 6. This is a computer-adaptive test covering verbal reasoning, non-verbal reasoning, English and mathematics. Boys who are shortlisted after the pre-test attend an interview and written exercise, and Radley's own FAQs confirm places are then offered to successful candidates in March of Year 6.
Stage two: Common Entrance or the end-of-Year-8 assessment. Not every boy sits Common Entrance: Radley's own FAQs say boys may instead sit Academic Scholarship exams, the Prep School Baccalaureate, school summer exams or Radley's own Maths and English papers at the end of Year 8. Radley's own FAQs confirm that whichever assessment a boy sits, the results are used to decide the sets he joins on arrival, not to set a pass-mark threshold on a place already offered.
The ISEB Common Pre-Test is not a curriculum exam. It tests reasoning ability — how a child processes information, identifies patterns and applies logic — rather than what they have been taught. The verbal reasoning section requires strong vocabulary and the ability to identify word relationships and analogies. The non-verbal reasoning section tests spatial and pattern recognition. The English and mathematics sections are curriculum-linked but pitched at a level that rewards genuine understanding rather than rote learning.
Where boys most often come unstuck is in the gap between their school performance and their reasoning test performance. A child who is doing well in class may never have encountered the question formats used in the ISEB test, and unfamiliarity alone can suppress scores significantly. Timed pressure is another common issue — the computer-adaptive format means questions get harder as a child answers correctly, which can feel disorienting without practice.
At Common Entrance, the subjects that most frequently cause problems are Latin, mathematics and the sciences. Latin in particular can catch boys out if it has not been taught consistently at prep school. Mathematics at CE requires fluency across a wide range of topics including algebra, geometry and data handling. English comprehension and essay writing reward boys who read widely and write with precision — skills that take time to develop and cannot be crammed in the final term.
Our 13+ specialists work with Radley applicants on the ISEB Pre-Test and the Year 8 assessments — including Common Entrance — that Radley accepts, helping students prepare for the academic and broader selection process Radley uses. Book a free consultation to discuss a preparation plan for the Radley College entry process.
Year 5: This is the time to register interest with Radley and begin building the foundations. Focus on reading widely — fiction, non-fiction, quality journalism — to develop vocabulary and comprehension. Ensure mathematics is solid at curriculum level, with no gaps in number, fractions or early algebra. Begin introducing reasoning question formats so they are not unfamiliar when the pre-test arrives.
Year 6 (pre-test year): Targeted preparation for the ISEB Common Pre-Test should begin by September of Year 6 at the latest. Work through verbal and non-verbal reasoning practice papers under timed conditions. Identify which question types your son finds most difficult and address those specifically. One concrete tip: practise the mathematics section with a focus on speed as well as accuracy — the adaptive format rewards boys who can move through accessible questions quickly to reach the harder ones where marks are differentiated.
Years 7 and 8: Once the offer stage is behind him, the focus shifts to whichever end-of-Year-8 assessment his prep school uses — Common Entrance or one of Radley's accepted alternatives. Build a subject-by-subject revision plan from the start of Year 7. Latin should be prioritised early if it is a weaker subject. Mathematics and science benefit from regular, structured practice rather than last-minute revision. English writing should be developed through regular essay practice with detailed feedback.
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Leading Tuition provides specialist 1-to-1 tutoring for boys preparing for Radley College and other competitive 13+ schools. Our tutors are experienced with both the ISEB Common Pre-Test and Common Entrance across all core subjects, and we tailor programmes to each child's starting point, timeline and specific areas of difficulty. Whether your son is in Year 5 and beginning to think about pre-registration, or in Year 7 working towards his CE subjects, we can put together a structured plan that gives him the best possible chance of meeting — and exceeding — Radley's requirements.
For official entry requirements and registration details, see the Radley College admissions.
Radley's admissions process is closely managed and academically selective. Boys register from an early age; the ISEB pre-test filters the pool; and some boys go on to sit Common Entrance or another end-of-Year-8 assessment that Radley's own FAQs say is used to set which teaching groups they join on arrival. The CE preparation phase — typically Years 7 and 8 — is when tutor support makes the biggest practical difference, ensuring the subject knowledge that was broadly in place at pre-test stage has been deepened, refined and tested at CE exam standard. Leading Tuition supports Radley candidates through both phases of the process, from initial ISEB pre-test coaching to subject-specific CE preparation across Mathematics, English, Science and the optional papers Radley most commonly requires. Our tutors are experienced with CE marking standards and help candidates develop not just subject knowledge but the method and presentation that CE examiners look for — particularly in Mathematics, where showing clear working is essential, and in English, where structured argument and accurate expression carry significant weight.
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Reviewed September 2026: every date, figure and rule on this page checked against Radley College's own admissions, FAQs and fees pages (radley.org.uk).
Most families register in Year 5 or at the very start of Year 6. The ISEB Common Pre-Test is typically sat in Year 6, so leaving registration until Year 7 is likely to be too late. Contact Radley's admissions office directly to confirm current registration deadlines, as these can change year to year.
A lower pre-test score does not automatically rule out a place, but it makes success at the interview and written exercise stage more important at a school of Radley's competitiveness. If the pre-test result is disappointing, it is worth having an honest conversation with the admissions team and, in parallel, reviewing whether other strong schools should be added to your list.
Yes. Radley looks at the whole boy — a strong reference from the current head, performance in music or sport, and interview presentation all contribute to the admissions picture. However, these factors work alongside academic performance, not instead of it. A boy who scores well on the pre-test and has a genuine passion for rowing or music is in a strong position; a boy who relies on co-curricular strengths alone is not.
The ISEB Common Pre-Test is a reasoning-based assessment sat in Year 6; Radley's own admissions FAQs confirm that places are offered to successful candidates in March of Year 6. Common Entrance is one of several assessments some boys sit at the end of Year 8; Radley's own FAQs say the results are used to decide the sets a boy joins on arrival, not to confirm the place. They test different things, require different preparation, and both matter — but the pre-test comes first and sets the entire process in motion.
Common Entrance for Radley covers English, Mathematics, and Sciences as core subjects, with most boys also sitting History, Geography, French and often Latin. Radley's own FAQs confirm that whichever assessment a boy sits at the end of Year 8, the results are used to decide the sets he joins when he arrives, rather than to set a pass mark on the place already offered. Mathematics is the subject where boys most often underperform relative to their overall ability — algebra, problem-solving and multi-step questions require consistent practice from Year 7. Our tutors work across all required CE subjects, ensuring boys are prepared in depth across their full offer profile rather than just in their natural strengths.
Leading Tuition provides specialist 1-to-1 tutoring for every stage of the Radley admissions process — from ISEB pre-test coaching in Years 5 and 6, through interview preparation, to subject-by-subject Common Entrance support in Years 7 and 8. Our specialist tutors understand what Radley expects and tailor programmes to each boy's subject profile, current level, and timeline. We work with families in Oxford, the Thames Valley, London, and nationally via in-person and online sessions. Our tutors cover every subject a Radley Year 8 assessment may require. Book a free consultation.
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