Hiroyuki Kimura has officiated 436 matches on record, averaging 1.5 cards and 14.9 fouls per game β a lenient official. A player is dismissed roughly once every 21 games, and the spot is pointed to 0.11 times per match. Home teams win 42% of matches under him, drawing 26% and losing 32%. Most active in the J1 League (237 matches). 37% of his bookings come after the 75th minute, with the first card around the 40'. He cards more than 30% of J1 League 2025 referees.