Revised IB Diploma Exam Results Reflect Student Success

This week, the International Baccalaureate Organisation (IBO) issued revised final
grades for the May 2020 IB Diploma Programme (IBDP).

As a result, we are delighted to announce that TASIS England’s Class of 2020
achieved an impressive 98% pass rate. The results also show that the candidates
earned an average point score of 35, which is significantly higher than the global
average of 29.9.

The IBO oversees the assessments for 170,000 school leavers around the world.
The decision to issue new grades was announced after growing concerns from
students, parents, and schools over the downgraded IBDP marks released in July.
Because students were unable to take the final exams this spring, grades were
previously calculated using an algorithm to scale marking based on predicted grades
and historical data. This method was broadly criticized for producing anomalies in
individual and school assessment.


The revised final grades are based on:

  • Internal Assessments – coursework, marked and submitted by schools, which were then marked by trained IB examiners; and
  • Predicted Grades – provided by schools, based on their judgement as to what students would have received had they sat the examinations.