| Personal information | |
|---|---|
| Nationality | Swedish | 
| Born | 19 February 2006 | 
| Sport | |
| Sport | Athletics | 
| Event | Sprint | 
| Achievements and titles | |
| Personal best(s) | 200m: 20.79 (2025) 400m: 46.47 (2024) | 
William Trulsson (born 19 February 2006) is a Swedish sprinter. In 2025, he became European indoor U20 record holder over 200 metres. [1]
He is a member of Malmö AI and predominantly races over 200 metres and 400 metres. [2] He became Swedish senior national champion over 200 metres for the first time in 2022, at the age of 16 years-old. [3] [4] [5]
In 2024, competing indoors in Växjö, he ran 400 meters in 47.04, beating Carl Bengtström's previous Swedish junior record by 13 hundredths of a second. He came third in the Swedish indoor championships in Karlstad in the 200m with a time of 21.08, an indoor personal best which placed him second all-time for a Swedish junior athlete. [6] He finished fourth in the 200m at the 2024 World Athletics U20 Championships in Lima, Peru in August 2024, the best ever placement by a Swedish male sprinter at the event. [7] [8]
He ran 20.69 seconds to set a European U20 indoor record for the 200m at the Swedish Indoor Championships in February 2025. [9]