Past HMChO Exams and Awards
Past HMChO Exams and Awards
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We hope to see you at HMChO 2027!
2nd Annual HMChO: 2026, Virtual
2nd Annual HMChO: 2026, Virtual
Both parts of the exam with their solutions can be accessed here. The recording of the awards ceremony can be found here.
Summary report is coming soon!
196 students competed in HMChO 2026; 32 countries/regions had students sign up to compete.
Awards Given:
Winners to the top 11 students (listed below in rank-order)
High Honors to the top 30 students (listed alphabetically)
Honors to the top 60 students (listed alphabetically)
Special Awards to the top 3 students in 9th-10th grade (listed below in rank-order)
Winners
Winners
Anna Xing
Enzhi Chen
Anish Agarwal
Ethan Cho
Timothy Oh
Bowen Shan
Phil Yao
Leonard Urusciuc
Jeffrey Yang
Aharshi Bhattacharjee
Kailash Satish
High Honors
High Honors
Abhinav Jain
Akshath Odugu
Andrew Zhang
Daniel Luo
Diana Dumitrașcu
Eric King Liu
Evan Liu
Frank Wei
Jai Dave
Jason Yin
Joy Chen
Kayla Jian Cheong
Magnus Lennart Güldenpfennig
Matei-Tudor Zevri
Nicole Lin
Paxton Lin
Pranav Karthikeyan
Shannon Imaoka
Theenash Sengupta
Honors
Honors
Abhinav Krishna Senthil Kumar
Ameya Paliwal
Anyi Sharma
Araz Nicknam
Arnav Chinthapatla
Audrey Xi
Brian Yang
Chengcheng Wang
Chou Sin Tung
Cruz Wong
Daniel Chen
David Rong
Davin Wang
Ding Yi Han
Ethan Ge
Gul Lalai Khan
Hongyuan Chen
Ian Kim
Jay Zhu
Jiwei (Aaron) Bai
Junzhe Li
Lucian Chang
Luphy Ma
Martin Kovachev
Mayur Bhatt
Natandaru Ahmad Aldhiharto
Ryan Hoang
Sam Easaw
Sophie Cui
William Fang
Special Award (Top 9-10th graders)
Special Award (Top 9-10th graders)
Anish Agarwal
Ethan Cho
Timothy Oh
Inaugural HMChO: 2025, Virtual
Inaugural HMChO: 2025, Virtual
Both parts of the exam with their solutions can be accessed here. The recording of the awards ceremony can be found here.
The summary report of the competition can be found here.
177 students competed in HMChO 2025; 22 countries had students sign up to compete.
Awards Given:
Winners to the top 8 students (listed below in rank-order)
High Honors to the top 25 students (listed alphabetically)
Honors to the top 50 students (listed alphabetically)
Special Awards to the top 3 students in 9th-10th grade (listed below in rank-order)
Winners
Winners
Anna Xing
Max Zhou
Sally Han
Daniel Ding
William Wang
Samuel Xu
Eric Chen
Evan Liu
High Honors
High Honors
Aarush Das
Anja Luise Liwanetz
Campbell Ruffing
Daniel Jiang
Gul Lalai Khan
Hrishi Desai
Hyunjun Kim
I-Shan Tsai
Jai Dave
Jenna Ke
Jieoh Ahn
Kian Dhawan
Leahu Bianca-Sofia
Magnus Lennart
Güldenpfennig
Sanjay Oruganti
Theenash Sengupta
Zhijia Zhang
Honors
Honors
Aaron Zhu
Adish Pudale
Aiden Seo
Alexander Ponomarev
Angela Huang
Daniel Lu
David Guo
Emma Liu
Hannah Ke
Jaishivan Sivanesan Paranam
Jazzy Rogando
Kevin Chen
Kevin Wu
Lennox Pfeifer
Leon Zhang
Lucas Liu
Luke Rushing
Niklas Damian Rajczy
Ruxandra Salagean
Sophia Fan
Timothy Oh
Varun Rodrigues
Vishnu Mangipudi
Yap Han Yuan
Yucheng (Oliver) Jing
Special Award (Top 9-10th graders)
Special Award (Top 9-10th graders)
William Wang
Eric Chen
Gul Lalai Khan
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