Karl Koppel has officiated 170 matches on record, averaging 3.8 cards and 5.1 fouls per game β a balanced official. A player is dismissed roughly once every 5 games, and the spot is pointed to 0.41 times per match. Home teams win 54% of matches under him, drawing 15% and losing 32%. Most active in the Meistriliiga (116 matches). 36% of his bookings come after the 75th minute, with the first card around the 35'. He cards more than 0% of Meistriliiga 2026 referees.