Dee ihe na-aga n'ihu maka paragraf a - N'ogo ndị ntorobịa, Kulboka anọchitewo anya Lithuania n'ọgbọ egwuregwu mba ụwa n'ọtụtụ oge, gụnyere na 2014 FIBA Europe Under-16 Championship na 2015 FIBA Europe Under-18 Championship. O nwetara akara kachasị elu nke otu egwuregwu 15.7 n'otu egwuregwu na 2016 FIBA Europe Under-18 Championship, n'ụzọ iji nweta ọla ọcha. Ọ zọkwara Lithuania na 2017 FIBA Under-19 Basketball World Cup
, na-eme ka otu egwuregwu dị elu nke 13.7 dị elu kwa asọmpi. Na 26 Febụwarị 2018, Kulboka bidoro dịka onye otu ndị otu egwuregwu mba Lithuania, site na ị nweta akara itoolu, na-ejide ise ise ma na-enye aka abụọ, ma nyere aka na-akụda ndị otu mba Kosovo, site na akara nke 106<unk>50, n'oge 2019 FIBA Nkata World Cup.