A city-wide chasing game is taking place in Dublin this evening.
Runners are asked to stop at a number of checkpoints before they finish the course through the city centre.
People can sign up on the Alt Events Dublin to take part.
Co-Director of Alt Events Danny O'Leary, has said it is not just about how fast you can run.
“It is for all ages and for any level of athleticism, it is more about knowing the city and being clever about the route that you pick.
“The runners far out-number the chasers, the chasers will obviously guard all of the obvious routes, but if you are clever and quick enough you can figure out other ways that the chasers might not have thought of.”