The 53rd IChO was held in Osaka, Japan, 25 July – 2 August 2021
| 1 | Chen Yizhou | Temasek Junior College | Gold |
| 2 | Goh Cheng Jun, Nicholas | Raffles Institution | Gold |
| 3 | Alphonsus Neo Yu Xiang | Raffles Institution | Silver |
| 4 | Kwee Tze Wei, Bernard | Hwa Chong Institution | Silver |
The 52nd IChO was held in Istanbul, Turkey, 23 – 29 July 2020
| 1 | Sean Leong | NUS High School of Maths and Science | Gold |
| 2 | Charles Jordi Windle | Raffles Institution | Gold |
| 3 | Jovan Liau | NUS High School of Maths and Science | Gold |
| 4 | Teng Wei Ngwan | Raffles Institution | Silver |
The 51st IChO was held in Paris, France, 21 – 30 July 2019
| 1 | Hu Yongao | Raffles Institution | Gold |
| 2 | Ng Yong Xiang | NUS High School of Maths and Science | Gold |
| 3 | Aw Ke Fun | NUS High School of Maths and Science | Silver |
| 4 | Tan Yong Yi | NUS High School of Maths and Science | Silver |
The 50th IChO was held in Slovakia & Czech Republic, 19 – 29 July 2018
| 1 | Marvin Dragon Choo | NUS High School of Maths and Science | Gold |
| 2 | Fong Khi Yung | Raffles Institution | Gold |
| 3 | Miao Jiapei | NUS High School of Maths and Science | Silver |
| 4 | Lim Hur | Raffles Institution | Silver |
The 49th IChO was held in Nakhon Pathom, THAILAND, 6 – 15 July 2017
| 1 | Matthias Liau Yi Quan | NUS High School of Maths and Science | Gold |
| 2 | Lam Tze King | NUS High School of Maths and Science | Gold |
| 3 | Tang Yimian | Raffles Institution | Silver |
| 4 | Zhang Zhiyuan | Hwa Chong Institution | Silver |
The 48th IChO was held in Tbilisi, Georgia in 2016
| 1 | Nan Zhihan | NUS High School of Maths and Science | Gold |
| 2 | Matthew Wong Huai Zhe | Raffles Institution | Gold |
| 3 | Wang Kaiying | Raffles Institution | Silver |
| 4 | Glen Goh Wee Zhuan | NUS High School of Maths and Science | Silver |
47th International Chemistry Olympiad Results:
The 47th IChO was held in BaKu, AZERBAIJAN in 2015.
| 1 | Bingjian Li | Raffles Institution | Gold |
| 2 | Jing Yee Kee | NUS High School of Maths and Science | Silver |
| 3 | Yi Cheng Kang | Raffles Institution | Silver |
| 4 | Bram, Song Jie Lim | Hwa Chong Institution | Silver |
46th International Chemistry Olympiad Results:
The 46th IChO was held in Hanoi, Vietnam in 2014.
| 1 | Sun Jiarui | Raffles Institution | Gold (1st) |
| 2 | Chen Xi | Raffles Institution | Gold (4th) |
| 3 | Brandon Tan Kai Jie | NUS High School of Maths and Science | Silver |
| 4 | Wong Wen Jun Lawrence | Raffles Institution | Silver |
45th International Chemistry Olympiad Results:
The 45th IChO was held in Moscow, Russia in 2013.
| 1 | Chua Anlong | NUS High School of Maths and Science | Gold |
| 2 | Cao Yuxin | Raffles Institution | Gold |
| 3 | Lin Yongjie | Raffles Institution | Gold |
| 4 | Fang Haitian | Raffles Institution | Bronze |
44th International Chemistry Olympiad Results:
The 44th IChO was held in Washington, DC•United States of America in 2012.
| 1 | Lim Rachel | Raffles Institution | Gold |
| 2 | Liu Aofei | Raffles Institution | Gold |
| 3 | Low Gerard | Raffles Institution | Silver |
| 4 | Tan Zhi Yang | NUS High School of Maths and Science | Silver |
43rd International Chemistry Olympiad Results:
The 43rd IChO was held in Ankara City, Turkey in 2011. Four students representing Singapore received Four Silver.
| 1 | Seet Hua En Ian | NUS High School of Maths and Science | Silver |
| 2 | Martin Lim Yuan Zhi | Raffles Institution | Silver |
| 3 | Chew Hong En | Raffles Institution | Silver |
| 4 | Guo Xiuzhen | Raffles Institution | Silver |
42nd International Chemistry Olympiad Results:
The 42nd IChO was held in Tokyo, Japan in 2010. Four students representing Singapore received two Gold and two Silver.
| 1 | Fong Jie Ming Nigel | Raffles Institution | Gold |
| 2 | Lum Jian Yang | Raffles Institution | Gold |
| 3 | Khu Boon Hou Derek | Hwa Chong Institution | Silver |
| 4 | Tng Jia Hao Barry | Raffles Institution | Silver |
41st International Chemistry Olympiad Results:
The 41st IChO was held in Cambridge, United Kingdom in July 2009. Four students representing Singapore received two Gold and two Silver.
| 1 | Gani Zhi Hao Terry | NUS High School of Maths and Science | Gold |
| 2 | Wang DaoBo | Raffles Institution | Gold |
| 3 | Lin Yuqun | Hwa Chong Institution | Silver |
| 4 | Xiao Xiao | Raffles Institution | Silver |
40th International Chemistry Olympiad Results:
The 40th IChO was held in Budapest, Hungary from 12 to 21 July 2008. Four students representing Singapore received one Gold, one Silver and two Bronze medals in a field of 255 student participants from 71 countries. In terms of medals won, Singapore was placed 12th out of 71 countries.
| 1 | Yeong Li Qian | Raffles Junior College | Gold |
| 2 | Wang Yong Jin | Raffles Junior College | Silver |
| 3 | Foo Mei Hua Fiona | NUS High School | Bronze |
| 4 | Lau Kang Ruey Gregory | NUS High School | Bronze |
The results are summarized in the MOE press release:
http://www.moe.gov.sg/media/press/2008/07/performance-at-the-2008-intern.php
39th International Chemistry Olympiad Results:
Moscow, Russia 15 – 24 July 2007 http://www.icho39.chem.msu.ru/
| 1 | Yang Zeqi | Hwa Chong Institution | Silver |
| 2 | Benjamin Chen | Raffles Junior College | Silver |
| 3 | Joseph Guang Jun Lim | Anglo-Chinese Sch Independent) | Bronze |
| 4 | Gan Chin Heng | Raffles Junior College | Bronze |
38th International Chemistry Olympiad Results:
Gyeongsan, Korea, 2 – 11 July 2006 http://icho2006.kcsnet.or.kr/
| 1 | Yuxin CHUAH | Raffles Junior College | Gold |
| 2 | Zhen LIANG | Hwa Chong Institution | Silver |
| 3 | Yi yang SEE | Hwa Chong Institution | Silver |
| 4 | Pang wei KOH | Raffles Junior College | Bronze |
37th International Chemistry Olympiad Results:
Taipei, Taiwan, 16-25 July 2005 http://icho.chem.ntnu.edu.tw/welcomehome.htm
| 1 | Justin, Yeo Chuin Chen | Silver |
| 2 | Jit Hang Jackie Ang | Bronze |
| 3 | Shin Ee Astee Goh | Bronze |
| 4 | Li Feng Tan | Bronze |
36th International Chemistry Olympiad Results:
Kiel, Germany, 18 – 27 July 2004 http://www.icho.de/
| 1 | Beh Leslie | Silver |
| 2 | Ng Yao Zong | Silver |
| 3 | She Zhi Wei | Bronze |
| 4 | Xie ShengXiang | Bronze |
35th International Chemistry Olympiad Results:
Athens, Greece, 5 – 14 July 2003 http://www.35icho.uoa.gr/
| 1 | Lam Yan Choi | Raffles Junior College | Gold |
| 2 | Lau Swee Theng, Celestine | Raffles Junior College | Silver |
| 3 | Ng Jian Ying, Brendan | Raffles Junior College | Silver |
| 4 | Cheong Kah Kay, Gabriel | ACJC | Bronze |
34th International Chemistry Olympiad Results:
Groningen, Netherlands, 5 – 14 July 2002
| 1 | Lui Pak Ling | Raffles Junior College | Silver |
| 2 | Tan Chun Ghee | Raffles Junior College | Silver |
| 3 | Rachel Wang Ruiqi | Raffles Junior College | Bronze |
| 4 | Tan Ying Xim | Hwa Chong JC | Bronze |
33rd International Chemistry Olympiad Results:
Mumbai (Bombay), India, 6 – 15 July 2001 http://zope.hbcse.tifr.res.in:9673/hbcse/icho/organizers
| 1 | Tan Jianlong | Raffles Junior College | Gold |
| 2 | Huang Yaohui Phillips | Raffles Junior College | Silver |
| 3 | Tay Wenkai | Raffles Junior College | Silver |
| 4 | Ruan Shiyun | Hwa Chong JC | Bronze |
32nd International Chemistry Olympiad Results:
Copenhagen, Denmark, 2 – 11 July 2000 http://www.icho2000.gymfag.dk/
Our team was placed 16th out of 54 participation countries in terms of medals won.
| 1 | Goh Xian-Yang Charles | Silver |
| 2 | Kok Hoong Chwan | Silver |
| 3 | Tan Chern Yee Geoffrey | Silver |
| 4 | Yap Woon Teck | Bronze |