Here you will find results and exam papers of past IBOs as well as further important information as files for download.
The final ranking of IBO competitors is based on the raw scores for practical and theoretical examinations recalculated with the use of equally weighted T-scores for both of them.
Studying for a future IBO? Searching for advanced, authentic biological contexts for your teaching or your exams? Check out our exam paper data base.
Do you have specific questions about how our association or the annual competition work? This section takes you to our rules and guidelines.
IBO’s alumni are currently organized on a separate website, organized by our esteemed colleague Junichi Saito / NBO Japan.
Find here a list of publications related to IBO.