The fastest time to slalom 50 cones with a skateboard is 10.02 seconds and was achieved by Janis Kuzmins (Latvia) at the Nike Riga Run in Mezaparks, Riga, Latvia, on 28 August 2011.

Janis broke the record at the Nike Riga Run.

Video of his attempt can be found here:

http://www.youtube.com/watch?v=TaFMXeJDhZU