Ville Käldström has officiated 14 matches on record, averaging 2.4 cards and 0.0 fouls per game — a lenient official. Home teams win 57% of matches under him, drawing 14% and losing 29%. Most active in the Kakkonen (14 matches). 29% of his bookings come after the 75th minute, with the first card around the 43'. He cards more than 29% of Kakkonen 2019 referees.