Ku qor sii wadida cutubkan - Kvasnička wuxuu ka soo muuqday ciyaar keli ah oo ku taal khadka buluugga ah ee Koobka Adduunka ee Junior 2017. Kadib wuxuu ku soo laabtay 2019 World Junior Championships
waxaan ku noolahay magaalada Vancouver ee gobolka British Columbia. Kvasnička wuxuu gacan ka geystay 3 dhibcood 5 kulan, isagoo ka caawiyay Czech inay u gudubto wareega ganaaxa, ka hor guuldaradii 3-1 ee ka soo gaadhay Mareykanka 2dii Janaayo 2019. Waxaa lagu soo xulay 3-da ciyaaryahan ee ugu sareeya kooxda Czech ee kaalinta 7-aad.