Isleworth GCSE results 2026: secondary school league table

On 2026 Attainment 8, Gumley House RC Convent School, FCJ tops the table in Isleworth with 59.9, against an England average of 46.2. Attainment 8 rewards intake as well as teaching, so compare a school's grade 5+ pass rate and, where published, its Progress 8 before reading the rank as a verdict.

Pupils receive their results in August, but school-by-school figures come from the DfE performance tables, which publish provisional results in the autumn (usually mid-October) and revised figures early in the new year. This table shows 2026 results, the 2025/26 academic year, and updates when the next release is imported.

Attainment 8 is the DfE's headline GCSE measure: the average points a school's pupils achieved across eight qualifications, with English and maths counted twice. A score of 50 means pupils averaged roughly a grade 5 across those subjects. No Progress 8 exists for 2026 because these pupils sat no Key Stage 2 tests in 2021.

A school has no published figure when it had no Year 11 cohort in the year (a new school, or one that opened with younger year groups), when it converted to an academy and the DfE published results under its previous identity, or when it is independent and its pupils sat IGCSE, Pre-U or IB qualifications that the DfE tables do not count. Independent schools with a published figure are listed separately and unranked for that reason.