Gunnar Jarl Jónsson has officiated 124 matches on record, averaging 0.6 cards and 1.5 fouls per game — a lenient official. A player is dismissed roughly once every 62 games, and the spot is pointed to 0.04 times per match. Home teams win 48% of matches under him, drawing 23% and losing 30%. Most active in the Besta deild (97 matches). 35% of his bookings come after the 75th minute, with the first card around the 39'. He cards more than 25% of Besta deild 2017 referees.