Ondřej Cieslar has officiated 66 matches on record, averaging 4.1 cards and 4.5 fouls per game — a firm official. A player is dismissed roughly once every 3 games, and the spot is pointed to 0.27 times per match. Home teams win 39% of matches under him, drawing 30% and losing 30%. Most active in the Chance Národní Liga (52 matches). 36% of his bookings come after the 75th minute, with the first card around the 35'. He cards more than 67% of Chance Národní Liga 2024/2025 referees.