# Anastazja Kuś athletic achievements and public response

> Live situation record from CLSTR: https://clstr.news/situations/anastazja-ku-athletic-achievements-and-public-response
> Updated: 2026-08-21T04:09:00.000Z. Sources: 5. Developments: 2.

Polish athlete Anastazja Kuś achieved significant success at the World U20 Championships in Eugene, USA, where she became the first Polish woman to win gold in the 400m and set a new Polish junior national record. Following this victory, she traveled to Birmingham, UK, to compete in the European Athletics Championships as part of a 4x400m relay team. Kuś noted that the rapid travel and lack of acclimatization were physically demanding.

In addition to her athletic achievements, Kuś has addressed public scrutiny regarding her social media presence and physical appearance, responding to criticisms made by former athlete Anna Kielbasinska.

## Timeline

### 2026-08-21: Anastazja Kuś wins World Junior 400m title

Polish athlete Anastazja Kuś won the 400m gold at the World Junior Athletics Championships in Eugene, while also addressing social media criticism regarding her public image.

3 sources. https://clstr.news/cluster/anastazja-ku-wins-world-junior-400m-title

### 2026-08-13: Anastazja Kuś wins historic 400m gold at World U20 Championships

Polish sprinter Anastazja Kuś won a historic gold medal and set a junior national record in the 400m at the World U20 Championships before competing in the European Athletics Championships relay.

2 sources. https://clstr.news/cluster/anastazja-ku-wins-historic-400m-gold-at-world-u20-championships

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Cite as: Anastazja Kuś athletic achievements and public response. CLSTR, https://clstr.news/situations/anastazja-ku-athletic-achievements-and-public-response