Sergiy Boyko has officiated 56 matches on record, averaging 2.3 cards and 16.1 fouls per game — a lenient official. A player is dismissed roughly once every 5 games, and the spot is pointed to 0.23 times per match. Home teams win 52% of matches under him, drawing 23% and losing 25%. Most active in the Europa League (39 matches). 30% of his bookings come after the 75th minute, with the first card around the 31'.