Niclas Karlsson has officiated 64 matches on record, averaging 2.7 cards and 11.7 fouls per game — a lenient official. A player is dismissed roughly once every 9 games, and the spot is pointed to 0.13 times per match. Home teams win 41% of matches under him, drawing 28% and losing 31%. Most active in the Ettan: South (36 matches). 56% of his bookings come after the 75th minute, with the first card around the 48'. He cards more than 77% of Ettan: South 2025 referees.