At the 2008 Summer Olympics in Beijing Lionetti finished her ranking round with a total of 613 points.

However, in the quarter-final they were eliminated by the eventual gold medalists from South Korea, despite a 217 points score.

The Koreans managed to shoot a new World Record of 231 points to advance to the semi-final.

She then went on to beat Miranda Leek and Tan Ya-ting, before losing to Aida Román.

[3] In the team event, Lionetti, Jessica Tomasi and Natalia Valeeva lost by one point (199-200) to China in the first round.