Halkaan ka sii qor faahfaahin faahfaahsan - Holmström wuxuu Sweden u matalay tartankii Ivan Hlinka Memorial Tournament ee 2013, halkaas oo uu ka sameeyay hal caawin afar kulan. Kadib wuxuu Sweden u matalayay 2014 IIHF World U18 Championships
, halkaas oo uu ahaa goolhayaha labaad ee ugu sareeya inta lagu gudajiray tartanka, isagoo diiwaangeliyay seddex gool iyo sideed caawin toddobo kulan. Holmström wuxuu Sweden u matalayay Koobkii Hockeyga Barafka ee Junior ee 2015, halkaas oo uu ku diiwaan geliyay hal gool iyo lix caawin toddobo kulan. Holmström ayaa mar kale Sweden u matalayay Koobkii Hockeyga Barafka ee Junior ee 2016, halkaas oo uu ku diiwaan geliyay hal gool iyo shan caawin toddobo kulan.