Petri Viljanen has officiated 245 matches on record, averaging 3.0 cards and 15.2 fouls per game โ a balanced official. A player is dismissed roughly once every 6 games, and the spot is pointed to 0.26 times per match. Home teams win 46% of matches under him, drawing 22% and losing 32%. Most active in the Veikkausliiga (178 matches). 39% of his bookings come after the 75th minute, with the first card around the 37'. He cards more than 27% of Veikkausliiga 2025 referees.