A common question from students outside the UK is whether they can sit the British Biology Olympiad (BBO) at all. The answer is yes: there is a dedicated China-region exam on 17 January 2026 (the UK home competition runs 19–28 January), so international and China-region students can take part and be recognised against the BBO's score-based award structure. What this route does not do is select you for the UK's International Biology Olympiad team, which follows a separate, UK-based path. This guide sets out who can take part and how the recognition works; for the exact China-region rules, always confirm on the official BBO channels.
Two sittings, one competition
The BBO runs on two calendars in 2026 — know which one applies to you, because the dates differ:
The exam itself is the same short, online biology paper for both sittings — multiple-choice, fill-in and ordering questions, with no lab component. It is open to sixth-form / high-school students with a strong interest in biology, and it rewards applying biological principles to unfamiliar problems rather than rote recall. Last year the competition drew more than 15,000 students from over 900 schools, a scale that makes a strong result a meaningful, externally-verified signal.
How recognition works
Awards are decided by score against published boundaries, so your standing reflects how you actually performed on the paper. The boundaries shift slightly year to year with the difficulty of the exam:
As a reference, the 2024 boundaries were roughly 113 (Gold), 103 (Silver) and 96 (Bronze), with further tiers below; the exact China-region award structure and current boundaries should be confirmed on the official channels. Because awards are score-based, the most reliable way to reach the top tiers is to work through real past papers under time — see our BBO past-papers pack.
What it signals — and the USABO companion
For students aiming at biology, medicine or life-sciences programmes, a strong BBO result is a clear signal of subject depth on a competitive, externally-marked exam. It also pairs naturally with the USA Biology Olympiad (USABO), which sits in late March and shares roughly 90% of the BBO's content — so many international students target both in a single preparation cycle. We cover that plan in BBO then USABO: the double-gold strategy.
Frequently asked questions
Can international students take the BBO?
Yes — through the China-region exam on 17 January 2026. You sit the same paper as UK students and are recognised against the BBO's award structure. Confirm the current registration route and rules on the official channels.
When is the BBO in 2026?
The China-region exam is 17 January 2026; the UK home competition runs 19–28 January. Dates change each year, so confirm officially before you plan.
Does the BBO lead to the International Biology Olympiad for international students?
The BBO selects the UK's IBO team through a separate, UK-based path. International students take part for BBO recognition, which is a distinct (and worthwhile) goal — confirm any progression details officially.
How are BBO awards decided?
By score against published boundaries — Gold, Silver, Bronze and further tiers. As a guide, 2024 boundaries were about 113 (Gold), 103 (Silver) and 96 (Bronze); confirm the current China-region structure officially.
This is an independent English-language guide to the British Biology Olympiad for international and China-region students, operated by Hanlin Education. It is not affiliated with, endorsed by, or sponsored by UK Biology Competitions (UKBC) or the Royal Society of Biology. Exam dates, the China-region award structure and registration routes are set by the organiser and can change each year — always confirm current details through the official BBO channels.