On the morning of July 19, the Ministry of Education and Training announced the official results of Vietnam's national team at the 66th IMO 2025, held in Sunshine Coast, Queensland, Australia.

Vietnam ranked 9th among participating countries and territories, with all six team members winning medals: two gold, three silver, and one bronze.

The medal winners are as follows:

Gold medals were awarded to Vo Trong Khai, grade 12, Phan Boi Chau High School for the Gifted, Nghe An Province, and Tran Minh Hoang, grade 12, Ha Tinh High School for the Gifted, Ha Tinh Province.

Silver medals went to Nguyen Dang Dung, grade 12, High School for Gifted Students in Natural Sciences, University of Science, Vietnam National University Hanoi; Nguyen Dinh Tung, grade 11, from the same school; and Le Phan Duc Man, grade 12, Le Hong Phong High School for the Gifted, Ho Chi Minh City.

The bronze medal was awarded to Truong Thanh Xuan, grade 11, Bac Ninh High School for the Gifted, Bac Ninh Province.

With a total score of 188, Vietnam ranked 9th among 113 participating countries and territories, following China (1st), the USA (2nd), South Korea (3rd), Poland and Japan (tied at 4th), Israel (6th), India (7th), and Singapore (8th).

Compared to the 2024 results (two silver, three bronze, and one honorable mention), Vietnam's 2025 performance marked a significant improvement.

The 66th IMO was held from July 10 to 20 in Sunshine Coast, Queensland, Australia, featuring more than 639 contestants from 113 delegations worldwide. This was the second time Australia hosted the IMO, the first being in 1988.

The total number of IMO medals awarded in 2025 included 72 gold, 104 silver, and 145 bronze medals.

This year's IMO consisted of six problems: two in number theory, two in combinatorics, one in geometry, and one in algebra with combinatorial reasoning, indicating a strong focus on combinatorics.

Notably, the only geometry problem in the exam, problem number two, was proposed by Vietnam. The author was Tran Quang Hung, a teacher at the High School for Gifted Students in Natural Sciences, University of Science, Vietnam National University Hanoi.

This marks the fourth time Vietnam has contributed a problem to the official IMO exam, following previous contributions in 1977 (author: Phan Duc Chinh), 1982 (author: Van Nhu Cuong), and 1987 (author: Nguyen Minh Duc).

The closing ceremony and award presentation for the 66th IMO is scheduled for 4:00 PM on July 19 (local time) in Australia.

Thanh Hung