49th IPhO (2018) Lisbon, Portugal
| Manqiu Wu | A.Y. Jackson Secondary School | ON | Bronze |
| Steven Mai | University of Toronto Schools | ON | Bronze |
| Alex You | Richmond Secondary | BC | Bronze |
| Tang David | University of Toronto Schools | ON | Bronze |
| Isaac Liao | Earl Haig Secondary School | ON | Honorable Mention |
48th IPhO (2017) Yogyakarta, Indonesia
| Ming Yang Ye | Bayview Secondary School | ON | Gold |
| Pedram Amani | West Vancouver Secondary | BC | Bronze |
| Jack Xu | Unionville H.S. | ON | Bronze |
| Henry Tang | Marc Garneau Collegiate | ON | Bronze |
| Guo Zheng | Richmond Hill High School | ON | Silver |
47th IPhO (2016) Zurich, Switzerland
| Stephen Liu | Bayview Secondary School | ON | Bronze |
| Steven Mai | UofT Schools | ON | Bronze |
| Noel Loo | Western Canada High School | AB | Bronze |
| Yiqun Zhang | Marc Garneau C. I. | ON | Bronze |
| Yuheng (Jack) Xu | Unionville H.S. | ON | Bronze |
46th IPhO (2015) Mumbai, India
| Qingyue (Austin) Wu | University of Toronto (extra students) | ON | Silver |
| Stephen Liu | Bayview Secondary School | ON | Bronze |
| Oliver Wang | St Robert Catholic Secondary School | ON | Bronze |
| Wilson Wu | Pierre Elliot Trudeau High School | ON | Honourable Mention |
| Andrew Kim | University of Toronto Schools | ON | Honourable Mention |
45th IPhO (2014) Astana, Kazakhstan
| Henry Wu | University of Toronto Schools | ON | Silver |
| Chris Ni | A. Y. Jackson Secondary School | ON | Bronze |
| Antonio Molina Lovett | Ecole Sainte-Anne | NB | Honourable Mention |
| Pasindu Muthukuda | Burnaby Central Secondary School | BC | Honourable Mention |
| Andrew Kim | University of Toronto Schools | ON | Honourable Mention |
44th IPhO (2013) Copenhagen, Denmark
| Bailey Gu | Lisgar Collegiate | ON | Bronze |
| Jannis Mei | University of Toronto Schools | ON | Honourable Mention |
| Hao Zhe Sheng | Bayview Secondary School | ON | Bronze |
| Shun Da Suo | Victoria Park Collegiate Institute | ON | Honourable Mention |
| Henry Wu | University of Toronto Schools | ON | Silver |
43rd IPhO (2012) Tallinn, Estonia
| Simon Blouin | Bois-de-Boulogne | QC | Bronze |
| Tristan Downing | Semiahmoo | BC | Bronze |
| Sepher Ebadi | Langstaff Secondary School | ON | Bronze |
| Yun Jia (Melody) Guan | University of Toronto Schools | ON | Bronze |
| Henry Wu | University of Toronto Schools | ON | Silver |
42nd IPhO (2011) Bangkok, Thailand
| Sepehr Ebadi | Langstuff S.S | ON | Silver |
| Christopher Macmackin | Saint John H.S. | NB | |
| Chao Wang | Sir John A. MacDonald C.I. | ON | Silver |
| Franklin Yang | Don Mills C.I. | ON | Bronze |
| Eric Zhan | University of Toronto Schools | ON | Honourable mention |
41st IPhO (2010) Zagreb, Croatia
| Jixuan Wang | Don Mills Collegiate Institute | ON | Silver |
| Franklin Yang | Don Mills Collegiate Institute | ON | Bronze |
| Shawn Xu | Burnaby North Secondary School | BC | Silver |
| Michael Zhang | Crescent School | ON | Silver |
| Jonathan Zung | University of Toronto Schools | ON | Silver |
40th IPhO (2009) Merida, Yucatan, Mexico
| Remy Abraham Mock | Mount Douglas Secondary School | BC | Bronze |
| Jixuan Wang | Don Mills Collegiate Institute | ON | Silver |
| Xiao Heng (Shawn) Xu | Burnaby North Secondary School | BC | Bronze |
| Zhaoxi Michael Zhang | Crescent School | ON | Honourable Mention |
| Jonathan Samuel Zung | University of Toronto Schools | ON | Bronze |
39th IPhO (2008) Hanoi, Vietnam
| Bo Cheng Cui | West Vancouver Secondary School | BC | Silver |
| Junjiajia Long | Glebe Collegiate Institute | ON | Gold |
| Keith Ng | St. Francis Xavier Secondary School | ON | Bronze |
| Jixuan Wang | Don Mills Collegiate Institute | ON | Bronze |
| Jingyuan (Linda) Zhang | Western Canada High School | AB | Silver |
38th IPhO (2007) Isfahan, Iran
| Lin Fei | Don Mills Collegiate Institute | ON | Gold |
| Han Zhu | Point Grey Secondary School | BC | Gold |
| Yifan Wang | Laura Secord Secondary School | ON | Bronze |
| Jingyuan Zhang | Western Canada High School | AB | Bronze |
| Devanand Sukhdeo | Champlain College Lennoxville | QC | Honourable mention |
37th IPhO (2006) Singapore
| Boris Braverman | Sir Winston Churchill High School | BC | Gold |
| Lin Fei | Don Mills Collegiate Institute | ON | Gold |
| Patrick Kaifosh | University of Toronto Schools | ON | Bronze |
| Devin Trudeau | Dover Bay Secondary | BC | Honourable mention |
| Lu Liu | Waterloo Collegiate Institute | ON | Honourable mention |
36th IPhO (2005) Salamanca, Spain
| Rongtao Dan | Point Grey Secondary School | BC | |
| Ivan Dmitrov | Don Mills Collegiate Institute | ON | Honourable mention |
| Michael McBreen | Collège François-Xavier-Garneau | QC | Honourable mention |
| Brett Teeple | Western Canada High School | AB | Honourable mention |
| Simon Viel | Champlain Regional College (St. Lawrence) | QC | Honourable mention |
35th IPhO (2004) Pohang, South Korea
| Amirali Modir Shanechi | Don Mills Collegiate Institute | ON | Gold |
| Noémie Savard | Champlain Regional College (St-Lambert) | QC | Bronze |
| Ali Reza Sharafat | Lisgar Collegiate Institute | ON | Honourable mention |
| Tout Wang | Don Mills Collegiate Institute | ON | |
| Yun Zhang | Sir Winston Churchill Secondary School | AB | Bronze |
34th IPhO (2003) Taipei, Taiwan
| Robert Barrington Leigh | Old Scona Academic High School | AB | Silver |
| François Girardin | Champlain Regional College | QC | Bronze |
| Jonathan Laflamme Janssen | Collège de Saint-Jérôme | QC | Bronze |
| Amirali Modir Shanechi | Don Mills Collegiate Institute | ON | Silver |
| Nan Yang | Birchmount Park Collegiate Institute | ON | Honourable Mention |
33rd IPhO (2002) Bali, Indonesia
| Garry Goldstein | W. L. Mackenzie Collegiate Institute | ON | Honourable Mention |
| Jonathan Ruel | Collège François-Xavier-Garneau | QC | Bronze |
| Andrew Wang | Earl Haig Secondary School | ON | Silver |
| Shannon Wang | Magee Secondary School | BC | Honourable Mention |
| Henry Wong | St. Francis Xavier Secondary School | ON | Gold |
32nd IPhO (2001) Antalya, Turkey
| Frédéric Dupuis | Western Canada High School | AB | Bronze |
| Ian Leroux | Collège Jean-de-Brébeuf | QC | Bronze |
| Isaac Li | Central Commerce | ON | |
| Jesse McKeown | Champlain Regional College | QC | Bronze |
| Liviu Tancau | Don Mills Collegiate Institute | ON | Silver |
31st IPhO (2000) Leicester, United Kingdom
| Guillaume Chabot-Couture | Collège François-Xavier-Garneau | QC | |
| Denis Dimitriev | Centennial Secondary School | BC | Honourable Mention |
| Frédéric Dupuis | Western Canada High School | AB | Honourable Mention |
| Bogdan Moldovan | George S. Henry Academy | ON | |
| Mandheerej Nandra | Martingrove Collegiate Institute | ON |
30th IPhO (1999) Padova, Italy
| Hojjat Bazzazi | Sir Winston Churchill Secondary School | AB | Bronze |
| Sonny Chan | Western Canada High School | AB | Bronze |
| Filip Crnogorac | Western Canada High School | AB | Silver |
| Michael James | Sir Winston Churchill Secondary School | AB | Honourable Mention |
| Eugene Osovetsky | W.L. MacKenzie Collegiate Institute | ON | Bronze |
29th IPhO (1998) Reykjavik, Iceland
| Daniel Brassard | Collège Édouard-Montpetit | QC | |
| Philippe Cauchon-Voyer | Collège Édouard-Montpetit | QC | Bronze |
| Sonny Chan | Western Canada High School | AB | Honourable Mention |
| Filip Crnogorac | Western Canada High School | AB | |
| Tom Waterhouse | St. John’s Ravenscourt Secondary School | MB | Bronze |
28th IPhO (1997) Sudbury, Canada
| Étienne Bernier | Champlain Regional College | QC | Bronze |
| J. Mottershead | Strathcona Composite Second. School | AB | Honourable Mention |
| Pierre Thibault | Cégep de Rivière-du-Loup | QC | Honourable Mention |
| Joel Kamnitzer | Earl Haig Secondary School | ON | Silver |
| Joseph Wong | Templeton Secondary School | BC | Honourable Mention |
27th IPhO (1996) Oslo, Norway
| Harvey Auerback | Vanier College | QC | Bronze |
| Jonathan Backer | Central Peace Secondary School | AB | |
| Alexandru Ghitza | Collège Jean-de-Brébeuf | QC | |
| Marco Gualtieri | Philips Academy | QC | Bronze |
| Vincent Pelletier | Collège Édouard-Montpetit | QC | Honourable Mention |
26th IPhO (1995) Canberra, Australia
| A. Archibald | Vanier College | QC | Silver |
| Jean-Marc Valin | Collège Bois-de-Boulogne | QC | Silver |
| David Cooke | Chilliwack Secondary School | BC | Honourable Mention |
| Andrew Lim | Maple Ridge Secondary School | BC | Honourable Mention |
| C. Thomas | Marc Garneau Collegiate Institute | ON |
25th IPhO (1994) Beijing, China
| Michael Forbes | Strathcona Tweedsmuir | AB | Bronze |
| J. Karczmarek | Vaughan Secondary School | ON | Bronze |
| Laurent Goulet | Collège Mérici | QC | |
| Anton Pitts | Dawson College | QC | |
| Étienne Rassart | Collège Édouard-Montpetit | QC |
24th IPhO (1993) Williamsburgh, U.S.A.
| Jurgen Hissen | Stelly’s Secondary School | BC | Bronze |
| Robert Kry | Western Canada High School | AB | Bronze |
| Xiao D. Yang | Harbord Collegiate Institute | ON | Bronze |
| Paul Tupper | Point Grey Secondary School | BC | Honourable Mention |
| Ari Benbasat | St. George’s School | BC |
23rd IPhO (1992) Helsinki, Finland
| Patrick Premont | Cégep de Valleyfield | QC | Bronze |
| Paul Tupper | Point Grey Secondary School | BC | Bronze |
| Adrian Dunn | Lakefield College | ON | Honourable Mention |
| Mark Hamilton | Coquitlam Secondary School | BC | |
| Wei Yu | Glebe Collegiate Institute | ON |
22nd IPhO (1991) Havana, Cuba
| M. Montour | St. Michael’s School | BC | Gold |
| Eric Lai | Toronto French School | ON | |
| Ludovic Nicolle | Cégep de Sainte-Foy | QC | |
| John Simms | Kamloops Secondary School | BC | |
| Weigang Zeng | Oakwood Collegiate Institute | ON |
21st IPhO (1990) Groningen, The Netherlands
| James Freitag | Collège Jean-de-Brébeuf | QC | |
| Michael Graesser | Woburn Collegiate Institute | ON | |
| Dean Haslip | M.M. Robinson Secondary School | ON | |
| M. Montour | St. Michael’s School | BC | |
| Mathew Rektor | Mt. Boucherie Secondary School | BC |
20th IPhO (1989) Warsaw, Poland
| N. Arkani-Hamed | Lorne Park Secondary School | ON | Bronze |
| Chris Simons | Marianopolis College | QC | Bronze |
| Eric Nodwell | Winston Churchill Secondary School | BC | Honourable Mention |
| Bradley Heinrichs | Semiahmoo Secondary School | BC | |
| Jon-Paul Voroney | Confederation Secondary School | ON |
19th IPhO (1988) Bad Ischl, Austria
| Trevor Blackwell | Gloucester Secondary School | ON | Bronze |
| David Hogg | University of Toronto Schools | ON | Honourable Mention |
| John Cheung | Riverview Secondary School | NB | |
| Darrell Harrington | Aden Bowman Collegiate Institute | SK | |
| Willy Wong | Winston Churchill Secondary School | BC |
18th IPhO (1987) Jena, East Germany
| Karl Bergrenn | St. George’s School | BC | Bronze |
| Tim Creasy | Halifax West High School | NS | Honourable Mention |
| Greg Wellman | Sir Winston Churchill Secondary School | BC | Honourable Mention |
| Glenn Chong | Laura Secord Secondary School | ON | |
| Richard Kiss |
Vernon Secondary School |
BC |
17th IPhO (1986) London, United Kingdom
| Sonu Gaind | Toronto French School | ON | Honourable Mention |
| Daniel Phalp | Toronto French School | ON | Honourable Mention |
| Chris Bauman | Miles Macdonell Collegiate Institute | MB | |
| D. Kucerovski | Frederick Banting Secondary School | ON | |
| Hy Tran Winston | Sir Winston Churchill Secondary School | BC |
16th IPhO (1985) Portoroz, Yugoslavia
| Nicholas Bateman | Toronto French School | ON | Honourable Mention |
| Vincent Cheung | Toronto French School | ON | |
| Sonu Gaind | Toronto French School | ON | |
| Mark Noworolski | Toronto French School | ON | |
| Daniel Phalp | Toronto French School | ON |