A man who collapsed at the finishing line of Sunday's Weybridge 10k and died later in hospital has been named as a carpenter from Feltham .
Czeslaw Dudek, 37, was given CPR in front of shocked fellow competitors after the event but medics were unable to save him.
It is understood Mr Dudek, a carpenter from Feltham, was being cheered on by his wife Sylwia and their daughter when the distressing scene unfolded.
Friend Ilo Bienkowska, said Mr Dudek was a "loving and caring dad and husband" whose loss had left the whole family "shattered", reports Mirror Online .
Already, just 12 hours after his death, a fundraising page has raised more than £3,000 in his memory to support his family.
Set up by Ms Bienkowska, it said: "No amount of money will bring Czeslaw back, but hopefully it will help his family do what ever they need to do. RIP Czeslaw."
Mr Dudek was competing in his first such event, which was also the inaugural Weybridge 10k.
At least three ambulances were pictured at the finishing line at around 10.25am.
Ms Bienkowska added: "He was a loving and caring dad and husband.
"His sudden death has left his wife and seven-year-old daughter in a tragic situation and shattered their lives."
Another friend, Marzena Bujak, told of how Mr Dudek's family were "incredibly important" to him: "They were waiting at the finishing line for him to finish the race," she said.
"His family were incredibly important to him. I miss him already. He was the best friend to me."
Other runners took to social media to describe what they saw and pay tribute to Mr Dudek, including Nicola Tait, whose partner Kris Cook died during the 2014 RideLondon-Surrey 100.
"It is with great sadness while I crossed the line and received my medal at the Weybridge 10k, a wife and daughter witnessed the worst thing ever," she said.
Nigel McHugh added: "We walked past the paramedics resuscitating this poor man on the way home.
"Most leave with a medal and aching legs but it's so heartbreaking that someone doesn't make it home at all."
Surrey Police has confirmed officers attended the scene at around 10.30am, adding Mr Dudek's death is not thought to have been suspicious.
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