IGCSE & IBDP Results

IGCSE and IB Diploma Results 2025

At The British International School Istanbul, we are proud to celebrate our students’ achievements in the 2025 IB Diploma and Cambridge IGCSE examinations. These results reflect their hard work, the expertise of their teachers and the support of our school community.

IB Diploma Programme

Our IB Diploma students achieved a 100% pass rate, with an average score of 33 points, above the world average, and a highest score of 40 points.

Results in 23 of the 30 subject and level combinations offered at our school exceeded the global average. These achievements provide a strong foundation as our graduates continue to universities around the world.

Cambridge IGCSE

Our students achieved the school’s highest IGCSE pass rate in ten years, excluding the pandemic years, with 88% of grades awarded at A*–C.

Our highest-achieving student earned 11 A* grades. Mathematics, History, German, Spanish, Computer Science and Biology each recorded a 100% pass rate at A*–C.

Celebrating Our School Community

Behind each result are years of learning, perseverance and personal growth. We congratulate our students and thank our teachers and families for the guidance, care and encouragement that supported these achievements.