Buuxi weedhan soo socota: Holmström wuxuu Sweden u matalay tartankii Ivan Hlinka Memorial Tournament 2013, halkaas oo uu ku diiwaan geliyey hal caawin afar kulan. Kadibna wuxuu Sweden uga wakiil noqday
2014 IIHF World U18 Championships, halkaas oo uu ahaa goolhayaha labaad ee ugu sareeya inta lagu guda jiro tartanka, isagoo diiwaan galiyay 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.