Tonut later returned to Pallacanestro Trieste where he played for the first time in the Serie A2 during the 2012-13 season.

During the next two seasons, he was ranked as the fourth-best scorer in the league and the best Italian player of Serie A2 with averaging 19.2 points per game.

Tonut then joined Reyer Venezia of the professional Italian top-flight level league LBA in July 2015.

In the 2020–21 season, Tonut won the LBA Most Valuable Player Award after averaging 15.6 points, 3.9 rebounds and 2.9 assists.

[1] On 25 June 2022, Tonut signed with Olimpia Milano of the Italian Lega Basket Serie A (LBA) and the EuroLeague.