Mario Alberto Díaz de Vivar has officiated 284 matches on record, averaging 4.1 cards and 12.7 fouls per game — a firm official. A player is dismissed roughly once every 3 games, and the spot is pointed to 0.26 times per match. Home teams win 43% of matches under him, drawing 26% and losing 31%. Most active in the Division 1 (261 matches). 32% of his bookings come after the 75th minute, with the first card around the 31'. He cards more than 56% of Division 1 2026 referees.