Running has a special effect on the human face. When some people start running their face becomes unrecognizable. At the Ljubljana Marathon on Sunday 27 October I shot 225 portraits of people who ran by. In this photo mosaic you can see the wide diversity of facial expressions of 225 runners of the Ljubljana Marathon. Click the mosaic to enlarge.
ljubljanees.com 
Congratulations, Mark. A lot of work and passion on both sides 🙂