Three contestants, one score sheet
The official row lists him as Hữu Quốc Huy Hoàng, with scores of 7, 7, 0, 7, 7, 7. Complete solutions to five problems and nothing on the third. Amirmojtaba Sabour of Iran and Yuta Takaya of Japan produced exactly the same six numbers, and the three of them finished the 58th olympiad tied at the top of the world.
No contestant in 2017 scored a perfect 42. Problem three, set in the hardest position on the first paper, returned nothing for a very large part of the field, and first place went to the small group that had dropped no marks anywhere else. It is a ranking produced by consistency under a ceiling rather than by a breakthrough above it.
The Vietnamese team in Rio
Behind Quoc Huy, the rest of the team delivered one of Vietnam's best collective results. Quang Dũng Lê and Cảnh Hoàng Nguyễn both scored 28 for gold at joint fourteenth, Nhật Duy Phan took 25 for gold at rank thirty-six, and Nam Khánh Phạm scored 21 for silver.
Four golds out of five listed contestants, in a year when the gold cut-off stood at 25 points, is a result that few countries manage. Vietnam placed three contestants inside the top forty of the world rankings, and its leading contestant at the very summit of them.
A name written two ways
Vietnamese naming order places the family name first, so the contestant known at home as Hoàng Hữu Quốc Huy appears in Western-ordered listings as Hữu Quốc Huy Hoàng or Hoang Huu Quoc Huy. All three refer to the same person and the same row in the 2017 table.
This is worth stating because the variants make the record harder to trace than it should be. A reader searching one spelling will not necessarily find the other, and the official results page itself uses the reordered form. The page here uses the Vietnamese-order spelling in the headline and records the official form alongside it.
What the table records — and what it does not
The firm facts are the organisers' own: the country, the per-problem scores, the total of 35, the shared first place, the gold medal, the year and the host city of Rio de Janeiro. Nothing on this page depends on a secondary account of the competition.
The table publishes nothing else. There is no age, no date of birth, no school, no city and no photograph, and no source gathered here describes how Quoc Huy qualified, what he studied afterwards or whether he competed again. Those gaps are listed rather than filled with assumptions.
Vietnam's long run at the top
The official results make Vietnam's persistence visible across nearly a decade. Quoc Huy shared first in the world in 2017. In 2025 Trong Khai Vo finished eighth with 38 points. In 2026 Dinh Tung Nguyen took gold at joint fourteenth with 36, having finished ninety-first with a silver the year before.
The pattern is national rather than personal. Different cohorts, different problem sets, and a country that keeps returning contestants to the same part of the table. That is the kind of result which points at a selection and training system, and it is the context in which a single joint first place is best understood.
| Person | Country | Milestone | Age / Stat |
|---|---|---|---|
| Hoang Huu Quoc Huy | Vietnam | He topped the world rankings in Rio and led a Vietnamese team that took fo | — |
| Junghun Ju | South Korea | A perfect score at the International Mathematical Olympiad | — |
| Amber Li | Australia | Three consecutive EGMO gold medals | — |
| Aida Mitroi | Romania | Three consecutive EGMO gold medals | — |
| Alisa Volkova | Russia | She solved five of the six problems outright and finished twelfth in the w | — |
What is documented — and what is not
✓ Documented
- 35 points of 42 at the 58th IMO in 2017, joint 1st, gold medal (official IMO results)
- Per-problem scores of 7, 7, 0, 7, 7, 7, matching the other two joint leaders
- Vietnam took four golds and a silver in 2017
? Unverified, disputed or wrong
- No age, birth year, school or city in these sources
- Name order varies between the official listing and Vietnamese usage
- No published information about what he has done since 2017
Questions people ask about Hoang Huu Quoc Huy
What did Hoang Huu Quoc Huy achieve?
He shared first place in the world at the 2017 International Mathematical Olympiad in Rio de Janeiro, with 35 points out of 42 and a gold medal.
How is his name spelled?
Vietnamese order gives Hoàng Hữu Quốc Huy. The official IMO table reorders it as Hữu Quốc Huy Hoàng, and Western listings often render it Hoang Huu Quoc Huy.
Who else finished first in 2017?
Amirmojtaba Sabour of Iran and Yuta Takaya of Japan, both with the same score sheet of 7, 7, 0, 7, 7, 7.
How did Vietnam do that year?
Four golds and a silver. Quoc Huy took 35, Quang Dũng Lê and Cảnh Hoàng Nguyễn 28 each, Nhật Duy Phan 25, and Nam Khánh Phạm 21.
How old is Hoang Huu Quoc Huy?
No source in this record gives his age or birth year. The IMO table publishes names, countries, scores, ranks and medals only.
Why did nobody score 42 in 2017?
Problem three defeated the field. The official scores show it returning nothing for a very large share of the 615 contestants, including all three joint leaders.
Is Hoang Huu Quoc Huy on Wikipedia?
No Wikipedia article was found for him. The source used here is the official IMO results table.
Where is he now?
No source in this record says. The documented trail is his row in the 2017 results.
Quick quiz: how well do you know Quoc Huy’s story?
How many gold medals did Vietnam win at IMO 2017?
What was Hoang Huu Quoc Huy's total score?
Where was the 2017 olympiad held?
Sources
- IMO 2017 individual results — International Mathematical Olympiad, 2017
- IMO 2025 individual results — International Mathematical Olympiad, 2025
- IMO 2026 individual results — International Mathematical Olympiad, 2026
Checked by the Geniuses.club editorial team. Ages are given as of September 2026.
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