Officers from Greater Manchester Police will be joined by colleagues from across the country as they take part in a charity run to remember PCs Fiona Bone and Nicola Hughes, who were killed in the line of duty.
More than 500 officers representing every force in England, Wales and Scotland will take part in a 10-mile run at the Sandringham Estate in Norfolk.
The run was originally planned to raise money for the Prince's Trust but, after the shootings in Greater Manchester, a decision was taken to share the proceeds with Cops (Care of Police Survivors).
Seven men and three women from the Manchester force will take part in the race and a minute of applause will be held in honour of their colleagues who died last week.
Chief Inspector Steve Jones, from Norfolk Police, organised this year's Police Sport UK event.
He said: "The race has been planned for some time but, following the tragic events in Manchester, we knew we had to find a way of honouring PCs Fiona Bone and Nicola Hughes. We decided we would split to proceeds to help the families of those killed in the line of duty.
"We considered holding a minute's silence but, after talking to people who knew the two officers, we decided a minute of applause would be more appropriate."
Phil Gormley, Chief Constable of Norfolk Police, will be among those taking part. He said the event provided a timely opportunity to remember those who make the ultimate sacrifice.
Mr Gormley said: "Given the recent events in Manchester, the charity Cops will be close to many runners' hearts as they take on the route."
The course will take runners through the west Norfolk countryside, in and around the village of Sandringham and within the grounds of Sandringham House.