The annual Wakefield Hospice 10k road race takes place on Sunday.
More than 1,100 runners have signed up and more are expected on the day.
Runners from all over the country will head to the start line at Lawefield Lane, next to Thornes Park.
The fast course, will take them along Horbury Road and Northfield Lane then onto Southfield Lane and Highfield Road.
Runners will then return along the same route and finish at Clarence Park.
Roads along the route, including Park Avenue and Quarry Hill, will be closed between 8.15am and 11am.
Race organiser Danielle Cain said:“Horbury Road has a rolling road closure, which means the road is only completely closed for a very short period of time.
“Thanks to the help of Wakefield Council’s highways team and Key Security for providing free professional marshals, we are able to minimise the road closure so traffic can continue to flow.
“Although we would like to apologise for any inconvenience caused.”
The race last year raised £40,000 for the Aberford Road hospice.
Miss Cain added: “We’ve had more women than ever sign up due to the popularity of running in our area.
“We hope families will also join us on the day for the 1k fun run.”
Entry is available on the day £15 for UK Athletics members and £17 for non-members.
For more information on the race and how to enter, go to www.wakefieldhospice.org
Don’t forget to tweet us your pictures from the day using #wake10k.