Canadian Mathematical Olympiad

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The Canadian Mathematical Olympiad [1] (CMO) is Canada's top mathematical problem-solving competition. It is run by the Canadian Mathematical Society. The Olympiad plays several roles in Canadian mathematics competitions, most notably being Canada's main team selection process for the International Mathematical Olympiad.

Contents

Qualification

Approximately 70 to 80 people qualify for and are invited to write the CMO each year. Students must not have written the Putnam Competition and must meet age, full-time school enrollment, and Canadian Citizenship (or permanent residency) requirements. Students do not have to be living in Canada, as long as they are Canadian citizens.

Participants are invited to write the CMO usually because of excellent results at the Canadian Open Mathematics Challenge (COMC). [2] Approximately the top 50 students from the COMC earn invitations to the CMO. A Qualifying Repêchage [3] (CMOQR) is offered as a "second chance" for the next highest 50 - 75 students from the COMC. Approximately 20-25 students are chosen from the Repêchage and are then invited to the CMO.

Top students in certain other top Canadian competitions may also be considered for invitations. The organizing committee may also invite participants based on their earlier CMO experience or their performance at APMO or USAMO competitions.

Competition Layout

The competition is three hours long. There are five questions on the CMO, each worth seven marks, for a total of 35 points. Each problem is graded the same way as it is on the IMO.

From 1969 to 1972, the CMO was ten questions long. In the 1970s, the exam length changed a number of times before finally stabilizing to five questions in 1979.

The CMS does not formally disclose its marking procedure, however in the past the following model was used:

  • Two graders grade the questions. If there is a dispute between the graders by more than one point, they will reconsider the problem until a consensus is reached.
  • If no work was done or very insignificant progress was made, the answer is graded zero.
  • If significant progress is made, marks of 1, 2, or 3 will be given, depending on the amount progress toward solving the problem.
  • Marks of 4 or 5 are given for answers that are essentially correct, but are poorly presented or lack showing of work in some areas.
  • If the solution has a minor error that can be trivially fixed, it is given a 6.
  • An absolutely perfect solution is awarded a mark of 7. This might be given if there is an error in the writing that does not affect the solution in any meaningful way.

Awards

There are several different types of rewards for doing well on the CMO:

Winners

YearWinnerCitySchool
2024Warren BeiWest Vancouver, BC Rockridge Secondary School
2023Warren BeiWest Vancouver, BC Rockridge Secondary School
2022Zixiang ZhouLondon, ON London Central Secondary School
2021Warren BeiVancouver, BCHomeschooled
2020Thomas GuoExeter, NH Phillips Exeter Academy
2019William ZhaoRichmond Hill, ON Richmond Hill High School
2018Victor RongToronto, ON Marc Garneau Collegiate Institute
2017Thomas GuoMarkham, ON William Berczy Public School
2016Kai SunLondon, ON A.B. Lucas Secondary School
2015Alexander WhatleySpring, TX North Houston Academy of Science and Mathematics
2014Zhuoqun (Alex) SongExeter, NH Phillips Exeter Academy
2013Calvin DengCary, NC NC School of Science & Math
2012Calvin DengCary, NC NC School of Science & Math
2011Mariya SardarliEdmonton, AB Strathcona Composite High School
2010Alex SongWindsor, ON Vincent Massey Secondary School
2009Jonathan SchneiderToronto, ON University of Toronto Schools
2008Chen SunLondon, ON A.B. Lucas Secondary School
2007Yan LiScarborough, ON Dr. Norman Bethune Collegiate Institute
2006Dong Uk (David) RheeEdmonton, AB McNally Composite High School
2005Peng ShiAgincourt, ON Sir John A. Macdonald Collegiate Institute
2004Yufei ZhaoDon Mills, ON Don Mills Collegiate Institute
2003 János Kramár Toronto, ON University of Toronto Schools
2002Tianyi HanToronto, ON Woburn Collegiate Institute
2001Daniel BroxWest Vancouver, BC Sentinel Secondary School
2000Daniel BroxWest Vancouver, BC Sentinel Secondary School
1999Jimmy ChuiNorth York, ONEarl Haig Secondary School
1998Adrian ChanToronto, ONUpper Canada College
1997Sabin CautisNorth York, ONEarl Haig Secondary School
1996Byung-Kyu ChunEdmonton, ABHarry Ainlay Composite High School
1995Donny CheungWinnipeg, MBSt. John's-Ravenscourt School
1994Kevin PurbhooToronto, ONNorthern Secondary School
1993Naoki SatoToronto, ONUniversity of Toronto Schools
1992J.P. GrossmanToronto, ONNorthern Secondary School
1991 Ian Goldberg (tie)Toronto, ONUniversity of Toronto Schools
J.P. Grossman (tie)Toronto, ONNorthern Secondary School
1990J.P. GrossmanToronto, ONNorthern Secondary School
1989Eli Michael LapellScarborough, ONWoburn Collegiate Institute
1988Gurraj SanghaWindsor, ONHon.W.C. Kennedy Collegiate Institute
1987 Ravi D. Vakil Etobicoke, ONMartingrove Collegiate Institute
1986Ravi D. VakilEtobicoke, ONMartingrove Collegiate Institute
1985Minh Tue VoMontréal, QCÉcole Secondaire St-Luc
1984Minh Tue VoMontréal, QCÉcole Secondaire St-Luc
1983William James RucklidgeToronto, ONToronto French School
1982Alastair RucklidgeToronto, ONToronto French School
1981David W. AshThunder Bay, ONFort William Collegiate Institute
1980 John J. Chew, III Toronto, ONUniversity of Toronto Schools
1979 W. Ross Brown Gloucester, ONAshbury College
1978 Michael Albert Penetanguishene, ONPenetanguishene Secondary School
1977 Igor Rivin Windsor, ONVincent Massey Secondary School
1976Rajiv GuptaThunder Bay, ONSir Winston Churchill C.V.I.
1975Patrick Smith (tie)Montreal, QCMonkland High School
James Williams (tie)Ottawa, ON Merivale High School
1974James WilliamsOttawa, ON Merivale High School
1973Alan Listoe (tie)Saskatoon, SKAden Bowman Collegiate
Luc St-Louis (tie)Montréal, QCCEGEP de Maisonneuve
1972Donald T. KerseyHamilton, ONHill Park Secondary School
1971Bruce NeilsonVancouver, BCPoint Grey Secondary School
1970John SpougeVancouver, BCSt. George's School
1969 Karl Morin-Strom (né Karl Strom)Sault Ste-Marie, ONSir James Dunn Secondary School

See also

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