Jane's organisation has raised more than £2m
More than 100 West Yorkshire police officers are to take part in a 10km run set up by charity fund raiser Jane Tomlinson who died from cancer.
The officers will join the Leeds 10K race on 21 June in aid of The Martin House Children's Hospice in Boston Spa.
Deputy Chief Constable David Crompton, who will be running, said: "The Jane Tomlinson run is a fantastic event."
The run was set up by Mrs Tomlinson, who died in 2007, to raise funds for children's cancer charities.
To date her organisation has raised more than £2m.
Jane's widower Mike Tomlinson said: "This is the biggest team in the history of the Leeds 10K and represents a great effort by West Yorkshire Police and we are very grateful that they have chosen to help the charities supported by Jane's Appeal with their fundraising."
Mr Crompton said: "Knowing the competitive nature of police officers I'm sure there will be some friendly rivalry in terms of who will post the best time.
"As long as we all cross the finish line and raise as much money as possible I will be more than happy."