2014–15

Vostruchovaitė competed at the 2014 European Championships. In 2015 she competed at the European Youth Olympic Festival alongside Diana Balkytė and they finished 25th as a team. Individually Vostruchovaitė placed 52nd in the all-around during qualification.^[2] She next competed at the Bosphorus Tournament where she placed sixth.

2016–17

Vostruchovaitė turned senior in 2016. She made her senior debut at the Antonia Koshel Cup where she finished sixth in the all-around. She placed first at the Lithuanian national championships.^[3] At the 2016 European Championships Vostruchovaitė finished 33rd during qualifications.

At the 2017 European Championships Vostruchovaitė finished 72nd in the all-around qualifications. She next competed at the Szombathely Challenge Cup but did not qualify for any event finals. Vostruchovaitė was selected to represent Lithuania at the 2017 World Championships; she finished 72nd in qualifications.

2018–19

Vostruchovaitė competed at Gym Festival Trnava where she placed 19th in the all-around and fourth on vault.^[4] At the 2018 European Championships, while practicing on vault, Vostruchovaitė strained her knee ligaments.^[5]

Vostruchovaitė returned to competition at the 2019 Lithuanian Championships where she only competed on uneven bars; she placed second behind Greta Semionova.^[6] She competed at the 2019 World Championships but did not qualify for any event finals nor did she qualify to the 2020 Olympic Games.

2020–21

At the 2020 European Championships Vostruchovaitė placed thirteenth on vault during qualifications but did not qualify for the event final.^[7]

At the 2021 Lithuanian national championships Vostruchovaitė placed third in the all-around behind Ūla Bikinaitė and Ema Pleškytė. She placed first on vault.^[8] At the 2021 European Championships Vostruchovaitė finished 71st in the all-around qualifications and 14th on vault.^[9] She next competed at the Ukrainian International Cup where she placed eighth in the all-around, third on vault, and sixth on balance beam.^[10] Vostruchovaitė competed at the Mersin Challenge Cup where she placed third on vault behind Csenge Bácskay and Tjaša Kysselef.^[11]