Wouter Wiersma has officiated 76 matches on record, averaging 4.0 cards and 21.5 fouls per game โ a balanced official. A player is dismissed roughly once every 5 games, and the spot is pointed to 0.29 times per match. Home teams win 36% of matches under him, drawing 25% and losing 39%. Most active in the Eerste Divisie (66 matches). 35% of his bookings come after the 75th minute, with the first card around the 33'. He cards more than 96% of Eerste Divisie 2025/2026 referees.