Organisers of a race in which 5,500 runners will take on 20 miles and 200 obstacles have appealed for volunteers to marshall the event.
The Rat Race Dirty Weekend will take place in the grounds of Burghley House on May 11.
Thousands of runners have already signed up but a team of volunteers is now needed to marshall the course and cheer on the participants.
Rosie Maclennan, of Ryhall Road, Stamford, is helping co-ordinate recruitment.
She has been busy promoting the event around the town and was on site on Friday last week to see the first of the obstacles being built.
She said: “We have about 1,000 leaflets coming out and about 60 posters going up. People are realising what the event is and what people will actually be doing.
“The atmosphere is going to be incredible. I think it is going to be one of Burghley’s biggest ever events.”
Volunteers will begin their shift at 7am on the day of the race and will mostly be asked to man a specific obstacle. Some will work on welfare stations handing out drinks.
In exchange for their time volunteers will be given a free ticket for the race afterparty, headlined by Ocean Colour Scene. This includes car parking and two nights camping.
They will also receive a goodie bag containing food and drink vouchers, a T-shirt and medal.
Rat Race managing director Jim Mee said the company hoped to involve as many people from the Stamford area as possible.
Some volunteers have signed up already but about 150 are still needed.
To sign up or find out more call Rosie on 07793 655673 or 01780 480490 or e-mail firstname.lastname@example.org.