General places for the Bath Half Marathon are expected to sell out in the next few days.
There are still three months until race day, but recent weeks have seen a big increase in entries with organisers predicting places will all go this week.
Entries to the race on Sunday March 2 are capped at 15,000, and runners are being encouraged to enter as soon as possible to avoid disappointment.
Race director Andrew Taylor said: "Once again we have been really pleased with the quick take-up of entries for next year's Bath Half.
"Taking the current economic climate into account along with the number of new races being introduced in the UK we are delighted that we are still in a position where we continue to sell out each year.
"The trend remains the same in that entries are being filled by a combination of return runners and new entrants, demonstrating the strength of the race's reputation in the UK race calendar."
Once general entries have closed, the only way to secure a place will be by entering the corporate challenge as a business team or through charities.
This year the official lead charity is CoppaFeel!; the National Osteoporosis Society is the local charity of the year, and Teenage Cancer Trust are the featured appeal.
Mel Taylor, from race organisers Running High, said: "In the past, once general entries have filled, runners usually turn their attention to charity places, but this is happening much sooner than anticipated this year, with many of the featured charity places being snapped up.
"This is fantastic news for us and our official charities, and we hope that the surge in charity places will mean that we smash the 2013 fundraising total of £2 million, which would mean another record total for the event."
This year organisers have also added the opportunity for runners to take advantage of a VIP package, which includes parking at the event, pre-race refreshments, changing and shower facilities, as well as a hot buffet after the race for VIP runners and two guests.
Entries, which are priced at £75, are limited.
Those who have already entered can upgrade to the VIP package by calling the Running High team on 01225 422255.
To secure a place, or for further information on the event charities, visit www. bath half.co.uk or call 01225 422255.
