In 2011, Tirinzoni won her first World Curling Tour event, the Red Deer Curling Classic. She would not play in an international championship until 2013, when she skipped Switzerland at the 2013 World Women's Curling Championship. After finishing the round robin with a 6–5 record, she found herself in a three-way tie for fourth. After beating Russia's Anna Sidorova in the first tie breaker, she lost to the United States' Erika Brown in the second, settling for fifth place. Since then, Tirinzoni has won several World Curling Tour events, including the 2013 International Bernese Ladies Cup, the 2013 Stockholm Ladies Cup, the 2013 Women's Masters Basel and the 2014 Pomeroy Inn &amp; Suites Prairie Showdown.