Over the last 12 months Petri Viljanen has refereed 14 games, comprising 1 Finnish Veikkausliiga Playoffs game and 13 Finnish Veikkausliiga games. In addition he has been the Fourth Official 16 times.
During this period he has issued 0 yellow card at a rate of 0 per game and 0 red card at a rate of 0 per game.
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