Tomorrow's release of GCSE grades will see a major change as they tie in with a new national performance measure.

Traditional league tables, which ranked schools on the proportion of pupils gaining grades A* to C in five GCSEs including English and maths, have been replaced.

Instead schools, pupils and parents will have to contend with a new system known as Progress 8.

The system is intended to look at how pupils have progressed through their time at secondary school.

Each pupil will be given projected GCSE grades based on their key stage two results from the end of primary school.

If they achieve those grades a school is deemed to have done well.

Each school will end up with a score, with zero representing a school were pupils have achieved what they were expected.

A score of 0.5, for example, indicates the school's overall achievement is half a GCSE grade higher than the national average.

Tomorrow the Oxford Mail will be covering GCSE results live across the country our our live blog at oxfordmail.co.uk

Our reporters and photographers will be at schools across the county, with full results available in Friday's Oxford Mail.