The amount donated to the National Osteoporosis Society, the charity 42-year-old Robert Berry was running for at the weekend's London Marathon, has reached over £60,000 since his death.
Berry, from Berkshire, collapsed at the finish line of Sunday’s Virgin Money London Marathon before later dying in hospital.
His JustGiving page has now received over 5,200 donations, reaching a total of £61,043, over double the £31,000 it had reached at the same time yesterday morning.
Claire Severgnini, chief executive of the National Osteoporosis Society, said that their thoughts and deepest sympathies are with Berry’s family.
She said: “We are really touched by the incredible generosity of so many people making donations in tribute to Mr Berry, who wrote so movingly about why he was raising money to help fight the impact of osteoporosis.
“When the time is right, we would like to discuss with his family the options available for how the National Osteoporosis Society may use the funds raised in his memory.”
According to Berry’s JustGiving site, he originally had hoped to raise £1,700 for the charity.
On the site Berry wrote: “I'm running the London Marathon in support of the National Osteoporosis Society for the support given to my mother who was diagnosed with Osteoporosis at the age of 52."
A statement on the London Marathon’s website says: “The organisers of the Virgin Money London Marathon would like to continue to express their sincere condolences to the family and friends of Mr Berry and our thoughts and deepest sympathies are with them all at this difficult time.”
The JustGiving site for Claire Squires, who died at the age of 30 at 2012’s London Marathon, remains open and has received almost £1m in donations to the Samaritans.
A spokesperson from JustGiving said: "We were so sorry to hear of the death of Rob Berry while running the London Marathon for a cause he cared about - our thoughts are with his family and friends at this very sad time.
"As a mark of respect for Rob and his family, we will be donating any fees on the processing of donations made through his JustGiving page back to his charity."