Harm Osmers has officiated 363 matches on record, averaging 3.6 cards and 20.6 fouls per game — a balanced official. A player is dismissed roughly once every 5 games, and the spot is pointed to 0.23 times per match. Home teams win 47% of matches under him, drawing 23% and losing 30%. Most active in the Bundesliga (137 matches). 34% of his bookings come after the 75th minute, with the first card around the 33'. He cards more than 87% of Bundesliga 2025/2026 referees.