CBO 2025 - tentative date

The 2025 CBO competition is tentatively scheduled for Thursday, April 10. Deadline for registration will be around March 22. 

The CBO test will take place at your school and the exam will need to be supervised by a teacher. Schools and students will need to register.

Details about the competition will be available later in the fall, registration will begin in the new year.

IBO 2024 Results

The Canadian team to the 2024 IBO in Kazakhstan were excellent ambassadors of Canada and we were very proud of their results in the competition. Lukas Li and Andy Shi were awarded Silver medals. Lawrence Luo and Arjun Sharma were recognized with merit certificates. The students had a great time in Astana.

2024 CBO Results

We are pleased to announce the 2024 Team that will represent Canada at the IBO in Astana, Kazakhstan this July.

Lukas Li William Lyon Mackenzie Collegiate Institute Toronto
Lawrence  Luo Port Moody Secondary School Coquitlam 
Arjun Sharma Trinity College School Oshawa
Andy Shi Western Canada High School Calgary

We would like to congratulate and thank all participants. It was a challenging exam for all students and all of you should be proud of your efforts.

Below you will find a list of the medal winners or you can download the list here. We are using the same classification system as the IBO; the top 10% of students are at the gold level, the next 20% are at the silver level, and the next 30% are at the bronze level. Students below the bronze level are not listed. Students are listed in alphabetical order within each category. Raw scores are not given.

The tentative date for the CBO Biology camp is June 30-July 4 - details to come.

Gold Medal Winners - top 10% of all Students who wrote the exam

Jeremy

Dai

Marc Garneau CI

Toronto

Andrew

Fang

Old Scona Academic High School

Edmonton

Jerry

Hong

Marc Garneau Collegiate Institute

Thornhill

Angelyn

Joseph

Merivale High School

Nepean

Ivy

Liu

Marc Garneau Collegiate Institute

North York

Jonathan

Liu

William Lyon Mackenzie C.I

North York

Barry

Luo

Sir Winston Churchill High School

Calgary

Max

Mao

Iroquois Ridge High School

Oakville

Marissa

Shang

Marc Garneau Collegiate Institute

Vaughan

Abby

Wang

Marc Garneau Collegiate Institute

Toronto

Michael

Wen

Marc Garneau Collegiate Institute

North York

Tommy

Wu

Upper Canada College

North York

Apple

Wu

Lord Byng Secondary School

Vancouver

Ada

Yao

University of Toronto Schools

North York

Jasmine

Zhai

The Bishop Strachan School

Toronto

Yining

Zhang

University of Toronto Schools

Toronto

Silver Medal Winners - next top 20% of all Students who wrote the exam

Chelsy

Bello

North Toronto Collegiate Institute

Toronto

Fiona

Chan

Marc Garneau C.I

Toronto

Emma

Chen

Marc Garneau C.I.

Toronto

Kelin

Cheng

Bayview Secondary School

Richmond Hill

Anne

Dai

York Mills Collegiate Institute

Toronto

Ashley

Dong

Northern Secondary School

Richmond Hill

Elliot

Fang

iroquois ridge high school

oakville

Emily

Guo

Marc Garneau Collegiate Institute

Toronto

Veronica

Guo

York House School

Vancouver

Iris

Guo

Lord Byng Secondary School

Vancouver

Phoenix

Hsuen

Earl Haig Secondary School

North York

Antian

Jiang

Marc Garneau Collegiate Institute

Markham

Kevin

Joseph

Merivale High School

Nepean

Jojo

Lawrence

Danforth CTI

Scarborough

Grace

Lee

Westmount Secondary School

Hamilton

Brian

Li

Marc Garneau Collegiate Insitute

Markham

Zander

Li

Laurel Heights Secondary School

Waterloo

Lillian

Li

Marc Garneau Collegiate Institute

North York

Helene

Li

West Carleton Secondary School

Ottawa

Kyla

Lian

St. Theresa of Lisieux Catholic High School

Richmond Hill

Larry

Liu

University of Toronto Schools

Toronto

William

Marcotte

Upper Canada College

Toronto

Jayden

Nguyen

Earl of March S.S

Ottawa

Emily

Pan

Crofton House School

Vancouver

Daria

Picu

University of Toronto Schools

Toronto

Ann

Qian

Western Canada High School

Calgary

Araf

Reshad

Kitchener-Waterloo CI & VS

Waterloo

Sabrina

Shen

Bishop Strachan School

Toronto

Enzo

Shi

Marc Garneau CI

Markham

Sienna

Su

Iroquois Ridge High School

Oakville

Maggie

Tian

Crofton House School

Vancouver

Rayne

Wallace

London Central Secondary School

London

Alison

Wang

Western Canada High School

Calgary

Ann

Wang

Prince of Wales Secondary School

Vancouver

Aidan

Wang

William Lyon Mackenzie Collegiate Institute

Maple

Alexander

Wong

University of Toronto Schools

Thornhill

Andrew

Xing

University of Toronto Schools

Markham

John

Xu

Upper Canada College

Toronto

Austin

Xu

University of Toronto Schools

Markham

Alex

Zhang

Fraser Heights Secondary School

Surrey

Ryan

Zhuang

Western Canada High School

Calgary

Bronze Medal Winners - next top 30% of all Students who wrote the exam

Monica

Andrews

University of Toronto Schools

Toronto

Lia

Che

Mulgrave School

West Vancouver

Charles

Chen

Sentinel Secondary School

West Vancouver

Dominic

Cui

Western Canada High School

Calgary

Nathalie

Dai

Lord Byng Secondary School

Vancouver

Matthew

Demelo

White Oaks secondary school

Oakville

Gurarmaan

Dhillon

Abbotsford Senior Secondary School

Abbotsford

Rayka

Farahmand

Upper Canada College

Toronto

Grace

Goudie

Pearson College

Happy Valley-Goose Bay

Kevin

Guo

University of Toronto Schools

Oakville

Sophia

Guo

Richmond Hill High School

Richmond Hill

Areez

Hirani

Saint Robert Catholic High School

Markham

Jessi

Huang

Merivale High School

Ottawa

Vita

Huang

Branksome Hall

Toronto

Sadra

Jafari

Earl Haig Secondary School

Toronto

Jacob

Jansen

Crescent School

Toronto

Chris

Jiao

St. George's School

Burnaby

Hargun

Khosa

Gobind Sarvar School Calgary

Calgary

Ioanna

Kontogiannis

University of Toronto Schools

Toronto

Amy

Lie

Marc Garneau CI

Toronto

Cal

Lin

Crofton House School

Richmond

Jed

Lin

Crescent School

Toronto

Robert

Lin

Westmount Charter School

Calgary

Daniella

Ling

Western Canada High School

Calgary

Daniel

Liu

Fraser Heights Secondary

Surrey

Alexandra

Ma

St. Clement's School

Toronto

Vivian

Mao

St. Clement's School

Toronto

Adam

Mawani

University of Toronto Schools

Toronto

Genevieve

Mayville

Northview Heights Secondary School

North York

Ethan

McManus

Dr. E. P. Scarlett High School

Calgary

Alaya

Mir

Jasper Place

Edmonton

Jacqueline

Ni

Collingwood School

629 Nicola Ave

Tessa

Nitescu

Marc Garneau CI

Toronto

Alvin

Pan

Marc Garneau Collegiate Institute

Toronto

Nicholas

Peng

R.A. McMath Secondary School

Richmond

Helena

Qi

Lord Byng Secondary school

Richmond

Yuze

Qi

Peoples Christian Academy

Woodbridge

Jack

Qiu

University of Toronto Schools

Toronto

YIXUAN

QIU

Unionville High School

Aurora

Vanessa

Ren

University of Toronto Schools

Toronto

Jacklyn

Saddler

A.N. Myer Secondary School

Niagara Falls

Matthew

Shen

St. Theresa of Lisieux Catholic High School

Maple

Cailyn

Sun

Port Moody Secondary

Coquitlam

Jessica

Sun

Marc Garneau Collegiate Institute

Newmarket

Su

Topaloglu

Havergal College

Toronto

Don

Tran

Marc Garneau CI

Scarborough

Jonny

Wei

Crescent School

Toronto

Daniel

Wu

St. Robert Catholic High School

Vaughan

Stanley

Wu

St. George's School

Vancouver

Richard

Xiong

Marc Garneau Collegiate Institute

Toronto

Caleb

Xu

Richmond Hill High School

Richmond Hill

Aaron

Yu

Markville Secondary School

Canada

Jayden

Yu

West Point Grey Academy

Vancouver

Victoria

Yu

Bayview Secondary School

Richmond Hill

Jasper

Yuan

Merivale High School

Ottawa

Jady

Zhang

BASIS Independent Silicon Valley

Markham

Kaitlyn

Zhang

The Country Day School

Aurora

Victor

Zhao

St. George's School

Vancouver

Daniel

Zheng

Grandview Heights Secondary School

Surrey