Rayhona Tuymuradova is an Uzbek secondary-school chemistry student who won a gold medal at the 58th International Chemistry Olympiad, held in her own country's capital, Tashkent, from 10 to 19 July 2026.
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Take the IQ test →She finished 27th in the individual standings, the best result of any member of Uzbekistan's four-person delegation and the team's only gold. Her team-mates Mirjalol Homidjonov, Azizmuhammad Hafizov and Jasur Mustafoev each took silver, meaning every Uzbek competitor came away from the home Olympiad with a medal.
The 2026 competition awarded 41 gold, 74 silver and 112 bronze medals in total. The IChO tests students across a theoretical paper and a laboratory practical, both taken over five hours, and restricts entry to secondary-school students under 20.
Uzbekistan's all-time record in the official IChO results database stands at 9 gold, 18 silver, 21 bronze and 1 honourable mention. Hers is the country's most recent gold.
Her name appears in several transliterations: Rayhona Tuymuradova in the IChO database's English column, Rayhona Tuymurodova in the original-script column, and Raykhona Tuymurodova in some Uzbek press coverage. Her age and date of birth have not been published.
| Person | Country | Milestone | Age / Stat |
|---|---|---|---|
| Rayhona Tuymuradova | 🇺🇿 Uzbekistan | Gold, 58th International Chemistry Olympiad, 27th in the world | Under 20 |
| Ruth Kozlovsky | 🇮🇱 Israel | Gold, 56th International Physics Olympiad | 10th grade |
| Liu Jiawei | 🇨🇳 China | Gold, 38th International Olympiad in Informatics | Secondary school |
| Shreya Shantanu Mundhada | 🇮🇳 India | First Indian EGMO gold medallist | Age 16 |
Rayhona Tuymuradova matters because host nations rarely peak at their own Olympiad — the organisational burden usually falls on the same institutions that train the team. Uzbekistan medalled with all four entrants and took a gold anyway, and the gold was hers. In a database that records only nine Uzbek golds in the country's entire IChO history, that is a scarce result.
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