Supported by the Actuarial Profession
The Canadian Mathematical Olympiad (CMO) is Canada’s premier national advanced mathematics competition. Candidates require an invitation from the Canadian Mathematical Society in order to participate.
The CMS wishes to thank the sponsors and partners who make our competitions program successful.
The 2021 CMO will take place on March 11, 2021.
Canadian Junior Mathematical Olympiad (CJMO) 2021
The CJMO is an olympiad style competition for younger students. Like for the CMO, the invitation to the CJMO is based on the results of the COMC and the Repêchage. Invitees will be the top students in grade 10 and below. Invitations to the CJMO will be sent out after the Repêchage has been graded.
The CJMO exam will be written at the same time as the CMO – on Thursday, March 11, 2021.
Past CJMO exams
Candidates require an invitation from the Canadian Mathematical Society in order to participate:
- The Canadian Open Mathematics Challenge (COMC) is the main qualifier for the CMO. Normally, the top 50 qualifying students from the COMC receive a direct invitation to write the CMO.
- Approximately the top 15-20 competitors from the CMO Qualifying Repêchage (CMOQR) earn invitations to the CMO.
- Normally, the top 3 students from the Alberta High School Mathematics Competition (Part II) and top 5 students from le Concours de l’Association Mathématique du Québec are invited to write the CMO.
In order to be eligible to write the CMO and receive prizes, the student:
- must be a Canadian citizen or permanent resident of Canada who is attending school full-time (elementary, secondary, Cégep, or home-schooled) since September of the year prior to the CMO;
- be less than 20 years old as of June 30 of the year of the CMO; and
- must not have written the Putnam Competition.
Students who choose to write the CMO agree to allow the CMS to publish their names and schools when announcing contest results.
Results and Prizes
Official results are posted in two divisions: (1) students competing within Canada (the Canadian division) and (2) students competing abroad (the International division). Actual scores are not displayed publicly but students will be informed of their own scores.
The Championship title, the Cup and the prize money are only awarded to students in the Canadian division.
Prizes (Canadian division only): If there are no ties, the First Prize winner in the Canadian Mathematical Olympiad receives the CMO Cup and $2000. In addition, the Second Prize winner receives $1500, the Third Prize winner receives $1000 and students earning an Honourable Mention (up to six students) receive $500 each. In the case of ties, prizes are pooled upwards.
Preparing for the CMO
It is important to emphasize that any student who is invited to write the CMO should be aware that success will require mathematics at a higher level than is taught in most schools, and therefore should prepare specifically for the competition. The CMS has several resources available for competitors.
Past Exams and Solutions
- 2020: Exam, solutions
- 2019: Exam, solutions
- 2018: Exam, solutions
- 2017: Exam, solutions
- 2016: Exam, solutions
- 2015: Exam, solutions
- 2014: Exam, solutions
- 2013: Exam, solutions
- 2012: Exam, solutions
- 2011: Exam, solutions
- 2010: Exam, solutions
- 2009: Exam, solutions
- 2008: Exam, solutions
- 2007: Exam, solutions
- 2006: Exam, solutions
- 2005: Exam, solutions
- 2004: Exam, solutions
- 2003: Exam, solutions
CMO Hall of Fame
Recent CJMO Winners
Congratulations to CMO Champion Thomas Guo, a Canadian student who attends Phillips Exeter Academy in Exeter, New Hampshire.
Thomas earned 2020’s Canadian Mathematical Olympiad Cup and a $2,000 prize!
|1st||Thomas Guo, Phillips Exeter Academy, Exeter, NH||$ 2000 and the CMO Cup|
|2nd||Zixiang Zhou, London Central Secondary School, London, ON||$ 1500 prize|
|3rd||Michael Li, Marc Garneau C.I., Toronto, ON||$ 1000 prize|
Andrew Dong, Centennial Collegiate Vocational Institute, Guelph, ON;
Arvin Sahami, Richmond Hill World School, Richmond Hill, ON;
Eric Shen, University of Toronto Schools, Toronto, ON;
Edgar Wang, Marianopolis College, Westmount, QC;
Kevin Wan, Marc Garneau C.I., Toronto, ON;
Daniel Yang, University of Toronto Schools, Toronto, ON
|$ 400 each|
William earned 2019’s Canadian Mathematical Olympiad Cup and $2,000 cash!
|1st||William Zhao,||$ 2000 and the CMO Cup|
|2nd||Victor Rong,||$ 1500 prize|
|3rd||Howard Halim,||$ 1000 prize|
|$ 500 each|
Congratulations to CMO Champion Victor Rong who attends Marc Garneau C.I. in Toronto!
Victor has earned this year’s Canadian Mathematical Olympiad Cup and $2,000 cash!
|1st||Victor Rong,||$ 2000 and the CMO Cup|
|2nd||Howard Halim,||$ 1500 prize|
|3rd||William Zhao,||$ 1000 prize|
|$ 500 each|
Congratulations to CMO Champion Thomas Guo who attends Olympiads School in North York, Ontario and William Berczy Public School in Markham! Thomas has earned this year’s Canadian Mathematical Olympiad Cup and $2,000 cash!
|1st||Thomas Guo,||$ 2000 and the CMO Cup|
|2nd||Rui Ming Xiong,||$ 1500 prize|
|3rd||Victor Rong,||$ 1000 prize|
|$ 500 each|
Recent CJMO Winners
The 2020 CJMO Champion is Richard Zhang of Western Canada H.S., Calgary, AB. Congratulation!
Four other students were recognized with Honourable Mention. They are, in alphabetical order:
- William Bate (Math Challenge at Western), London, ON;
- Jason Fang (Prince of Wales Secondary School), Vancouver, BC;
- George Wang (University of Toronto Schools), Toronto, ON;
- Haozhe Yang (Walter Murray Collegiate), Saskatoon, SK.
- The top score this year was 21/35, the median score was 10/35.
- A total of 19 students from 17 different schools wrote the 2020 CJMO