News & Updates
Cutoff analysis, season roadmaps, exam guidance and competition comparisons for the USA Biology Olympiad in China.
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Don’t Just Do Past Papers, Review Them: A USABO Error-Log System That Turns Practice Into Points
Most students grind USABO past papers and plateau. The gains come from how you review them. Here is an error-log review system built for the 50-question, 50-minute Open Exam.
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50 Questions in 50 Minutes, No Penalty: How the USABO Open Exam Scoring Rules Should Change the Way You Sit It (2026)
USABO Open Exam: 50 questions, 50 minutes, no penalty. The tactical consequence is clear: never leave a blank, pace at one minute each. Here is how to turn the rules into marks.
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Where the Marks Are: Budgeting Your USABO Revision Hours by the Seven Subject Areas (2026)
USABO is weighted: Animal 25%, Cell 20%, Genetics 20%, Plant 15%, Ecology 10%, Ethology & Biosystematics 5% each. Turn those percentages into a revision-hour budget.
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The USABO Semifinal Exam, Decoded: What Happens After You Pass the Open Exam (2026)
Most USABO guides stop at the Open Exam. The Semifinal is the round that really decides Nationals: 120 minutes, three parts, top-20 gate. Here is how it works.
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How to Prepare for USABO: A Study Plan with Campbell, AP Bio & Past Papers (2026)
USABO tests college-level biology — essentially AP Bio plus general college biology. This study plan shows what the exam actually weights, how to build the knowledge from Campbell, and how to convert it into marks with past papers.
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USABO for International Students: The China-Region Pathway (2026)
Unlike some US national-team competitions, the USABO has a China-region pathway, so international students can sit it and earn recognition. Here is who can take part, how the China-region awards work, and what it signals for applications.
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USABO vs BBO: Which Biology Olympiad Should You Sit First? (2026)
USABO and BBO test most of the same biology, and the China-region BBO now sits in January — about ten weeks before the USABO China-region Open Exam in early April. That makes BBO an ideal warm-up, and one prep cycle can realistically target both. Here is how to plan it.
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BBO vs. BIO Biology Competitions: A Complete Guide for High School Students
For students targeting college programs in biology, medicine, or pharmacy, academic competition awards have become key differentiators in the admissions process. The BBO and BIO-USACN are two premier international biology competitions favored by top university applicants worldwide. They share significant syllabus overlap and require relatively focused preparation cycles, making them attractive options for students across…
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Top 4 International Biology Competitions: A Complete Guide for Students
For students planning to apply for majors in biology, medicine, or related life sciences fields, international biology competitions provide a proven pathway to strengthen college applications. This guide covers four leading international biology competitions and provides tailored preparation advice by grade level, helping you identify the right competition and start at the optimal time. Brain…