Sigurdur Óli Thorleifsson has officiated 62 matches on record, averaging 1.1 cards and 0.4 fouls per game — a lenient official. A player is dismissed roughly once every 62 games, and the spot is pointed to 0.11 times per match. Home teams win 40% of matches under him, drawing 26% and losing 34%. Most active in the Inkasso-Deildin (56 matches). 33% of his bookings come after the 75th minute, with the first card around the 40'.