June 2026 Edexcel GCSE Biology grade boundaries: Higher grade 4 = 84/200, 7 = 147/200; Foundation grade 4 = 115/200. Every grade, from the official tables.
Pearson Edexcel GCSE Biology 1BI0 has Foundation and Higher total raw-mark boundaries, each out of 200.
Published boundaries
Use the qualification code, variant and maximum mark shown with each table.
Sit a free timed Edexcel Biology mock, 26–31 October, marked with a full breakdown of what to revise next. Registration is free and spots are limited: 500 places in total, first come, first served.
Use the awarding body, specification or entry code, and tier shown by your school or results information. Do not use a similarly named table from a different specification.
Are 2026 GCSE grade boundaries the same for every exam board?
No. Each awarding organisation sets boundaries for its own specifications. Match the exam board, subject, specification code and tier before using a table.
Is a grade boundary a percentage?
Not necessarily. Most tables here report total raw marks, while the CCEA tables report UMS. Revise Right does not convert either figure into an inferred percentage.
Are component grade boundaries official grades?
Qualification-level boundaries determine the overall grade. Some boards publish notional component boundaries for analysis, but they are not separate official grades and are excluded from these tables.
Does being close to a grade boundary mean my mark is wrong?
No. A boundary explains how a published mark maps to a grade; it does not show that the mark itself is wrong. If a result looks unexpected, ask your school or college to check the entry, total and available post-results services. A reviewed mark can go down, stay the same or go up.