Second race of Wroclaw Night O-fight took a place in the Kuzniki estate, where is a lot of similar buildings. I was a course planner and I used a type of butterfly, which I first time meet on CISM 2010 in Kongsberg. This butterfly has four possibilities. I had a lot of mess on the start (intervall 30"), but runners had much more on their ways.
If you want to see, how was on WNOF round1, watch it:
/thanks to Marta&Wojtek and their new head camera/