Aged 33, Tobar became a FIFA international referee in 2011. In 2012, the Football Federation of Chile suspended Tobar for eight months as part of the "Poker Club" corruption scandal. The scandal, led by Mario Sánchez Yantén, involved referees playing poker games, and the loser had to referee a regional football match. After the suspension, Tobar returned to officiating, and was named Chile's best referee in 2013 and 2014.
