|Women's Javelin throw|
|Games of the Small States of Europe|
|2013 Luxembourg||Javelin throw|
|2015 Iceland||Javelin throw|
Stasiulionytė finished sixth at the 1999 European Junior Championships and seventh at the 2005 Summer Universiade. She also competed at the 2005 World Championships and the 2008 Olympic Games without reaching the final round.
Stasiulionytė competes in AS Monaco Athletics Club which allowed her to represent Monaco in the Games of the Small States of Europe, where she won two silver medals in 2013 and 2015. With her results achieved in 2013 Games of the Small States of Europe she was 7th best javelin thrower in Lithuania in 2013.
|1999||European Junior Championships||Riga, Latvia||6th||53.32 m|
|2000||World Junior Championships||Santiago, Chile||16th (q)||46.68 m|
|2001||European U23 Championships||Amsterdam, Netherlands||12th||48.50 m|
|2003||European U23 Championships||Bydgoszcz, Poland||14th||48.07 m|
|Universiade||Daegu, South Korea||13th||51.64 m|
|2005||World Championships||Helsinki, Finland||25th (q)||54.38 m|
|Universiade||Izmir, Turkey||7th||53.54 m|
|2008||Olympic Games||Beijing, China||32nd (q)||55.66 m|