It was in the fourth heat that Grate dropped an arm in the fight for the positions.

- It's a clean dish on Grate, says the Norwegian sprint coach Eirik Myhr Nossum and is agreed by Therese Johaug expert on NRK. 

It was chaotic in the men's quarters as the riders tried to find their way around the loose track.

However, Grate didn't even get a warning and was able to go to the semi-finals as lucky ones.

He was third in the heat won by Jules Chappaz, France, ahead of Michal Novak, Czech Republic.