The Library of Competitions
Tian2 Editions
Volume I · MMXXVIBiology & Health
The Library of Competitions
Tian2 Editions
Three national biology olympiads, the world's largest neuroscience competition for teens, and HOSA's 105 health-profession events — the breadth of the life sciences in one shelf.
Open Exam · Semifinal · National Finals.
Twenty Open Exams parsed and topic-tagged. The flagship US route to the IBO, run by CEE since 2002.
Health Science · Health Professions · Emergency · Leadership.
All 105 event guidelines for the 2025–26 cycle on file, byte-validated. The widest health-profession catalogue in this library.
2-hour MCQ · 70 marks · online (since 2020).
16 years of past papers (2007–2024, with two gaps) downloaded and validated. Top 24 attend a January summer school; 4 go to IBO.
Two papers · ninety minutes each · A-level standard.
Run by the Royal Society of Biology for upper-sixth-form students. The UK route to the IBO.
Local · National · International champion.
~60 national chapters; format and fees devolved to country. Free study materials concentrated in two open-access partner PDFs.
If you can read an MCAT-style passage and you have access to Campbell's Biology, you have the toolkit for USABO. The test is dense — 50 multiple-choice questions in 50 minutes — and it draws on six IBO subject areas. We've parsed the 2018 Open Exam down to topic banners and built a cross-year provisional sub-topic library across 2004–2018.
HOSA is the outlier in this shelf: it's not an olympiad. It's a career-focused conference with 105 events ranging from CPR competition to Medical Innovation pitching. If you want clinical exposure rather than syllabus drilling, this is where to go.
Brain Bee (narrow) → ASOB (broad MCQ) → BBO (broad written) → USABO (broad + practical) → HOSA (clinical/career).
— The Editors