Athlete, 29, dies at World Games after collapsing and being found unconscious

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GB News

By GB News


Published: 03/09/2025

- 04:10

Medical staff had been trying to revive him for days

A 29-year-old Italian athlete has died following his collapse at an orienteering competition in China.

Mattia Debertolis passed away on Tuesday, four days after he was discovered unconscious during the men's middle-distance race at the World Games in Chengdu.


Medical staff at one of China's premier healthcare facilities fought to save Debertolis's life over the course of four days. However, their efforts proved unsuccessful, and he died on Tuesday morning.

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The Italian was amongst a dozen competitors who failed to complete the middle-distance race, according to official competition records.

Mattia Debertolis

Mattia Debertolis tragically died after being found unconscious in China

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The circumstances surrounding his death remain unclear, though the race took place in sweltering conditions with temperatures exceeding 30C.

Competition organisers confirmed that Debertolis received urgent medical attention immediately after his collapse. In their official statement, they noted: "Despite receiving immediate expert medical care at one of China's leading medical institutions, he passed away."

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The World Games administration pledged to "continue to support the family of Debertolis and the orienteering community in every possible way."

Tom Hollowell, who heads the International Orienteering Federation, expressed profound grief at the tragedy. He stated he was "not able to adequately describe the unfathomable depth of sadness in this tragic loss of life."

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Mattia Debertolis

Mattia Debertolis would document his achievements on social media

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The exact medical reasons behind the Italian athlete's sudden collapse and subsequent death have not been determined.

Beyond his sporting pursuits, Debertolis had established himself as an accomplished academic.

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The athlete held qualifications as a civil engineer and was pursuing doctoral studies at a Stockholm university, where he had made his home in Sweden.

His competitive record demonstrated considerable skill in the sport. Just weeks before his death, he had participated in July's World Orienteering Championship in Kuopio, Finland, where he advanced to the middle-distance final.

Mattia Debertolis

Mattia Debertolis travelled all over the globe orienteering

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Orienteering challenges participants to find their way between unmarked control points across varied terrain using only a map for guidance.

The sport demands both physical fitness and navigational skills, requiring competitors to solve route-finding problems whilst maintaining pace through outdoor environments.