Organisers of the Pharmalink 2014 Maidenhead Half Marathon have called for repeat runners to sign up again this year and gain recognition for their efforts.
Runners in the inaugural race in 2011 have kept their race number and it will change to gold to show off their achievement to everyone if they carry on to the fifth anniversary next year.
Race director Claire Donald said the idea is borrowed from a tradition in the 90km Comrades Marathon in South Africa, where it acts as a 'badge of honour'.
There are 308 people who have run all three Maidenhead Half Marathons to date.
Claire's husband Chris, the director of race organisers Purple Patch Running, said he hoped to welcome them all back again on Sunday, September 7 and in future races too.
"It is a bit of fun really but it will be interesting over the next few years to see who is the last man or woman standing," he said.
"The London Marathon has been going for 34 years and there are 14 runners that have done them all.
"It would be great if we could rival that."
Download a Race entry form here, but hurry! The deadline is Sunday, August 31.
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