Cardiff High School, Cyncoed: The city's most sought-after secondary school is likely to lay claim to Wales' best GCSE scores, which have surpassed all expectations.
Regularly ranked the nation's top-performing school, Cardiff High broke all records - and the 90% barrier - on its way to an amazing set of GCSE results. 91.4% reached the Level 2+ benchmark.
Results are impressive across the board with 99% of pupils achieving at least five good GCSEs; 30 pupils achieving at least 10 A*-A grades; and three pupils achieving an astonishing 11 A* grades.
Head teacher Steve Jones said: "Results like this don't just happen! To be able to achieve performance like this consistently over a number of years is testament to the aspiration of the school for every single pupil."
Corpus Christi High School, Lisvane: The school improved its results for the fourth consecutive year. Nine in 10 pupils (90%) achieved five GCSEs at A*-C. A further 87% got five A*-C grades including English or Welsh and maths - up 3.6% on last year.
Overall, 89% achieved A*-C in maths; 92% hit the level in English; and a massive 96% reached the benchmark in science. A third (33.5%) of pupils gained at least five A-A* grades.
There were five pupils who achieved at least 10 A* grades: Bridget Morris, Lucy Campbell, Ashna Anil, Juliette Goodwin and Coco Zhang. Twins Ben and Max Thomas each achieved nine A*s and an A grade.
Radyr High School: Radyr reported an impressive 76.4% achieving the Level 2+ benchmark, with 95.2% achieving five A*-C grades. Pupils who performed particularly well included Rhian Gruar and Katie Long, with a phenomenal 12 A*s and one A each; Anna Grundy, with nine A*s and four As; and Nicholas Lai, who achieved nine A*s and four As.