Jan Váňa has officiated 29 matches on record, averaging 2.4 cards and 0.9 fouls per game — a lenient official. A player is dismissed roughly once every 10 games, and the spot is pointed to 0.21 times per match. Home teams win 72% of matches under him, drawing 21% and losing 7%. Most active in the Chance Národní Liga (23 matches). 29% of his bookings come after the 75th minute, with the first card around the 30'. He cards more than 91% of Chance Národní Liga 2018/2019 referees.