George Calder has officiated 37 matches on record, averaging 2.7 cards and 16.2 fouls per game โ a lenient official. A player is dismissed roughly once every 37 games, and the spot is pointed to 0.27 times per match. Home teams win 43% of matches under him, drawing 16% and losing 41%. Most active in the League One (27 matches). 42% of his bookings come after the 75th minute, with the first card around the 46'. He cards more than 0% of League One 2025/2026 referees.