Following runners live during Leiden Marathon

During the Marathon of Leiden last weekend the spectators could follow the runners live on the course. Not just by textmessages on the mobile phone with the lap times but also on an big screen.

With the use of modern technology supplied by TNO it was possible to trace a number of runners during their race (speed, hartrate, location). For people at home the runners could be followed using google maps or google earth.
It was also possible to cheer on the runners using textmessages. All this as part of a graduation project.