Kammala jumla mai zuwa: Iivo Niskanen ya fara halartar gasar cin kofin duniya a ranar 12 ga Maris, 2011, lokacin da ya zama na 69 a tseren tseren kilomita 20 a Lahti, Finland. Ya samu nasararsa a matakin kasa da kasa lokacin da ya lashe tseren kilomita 15 a gasar Olympics ta duniya.
2014 a karkashin 23 gasar zakarun duniya a Val di Fiemme a ranar 30 Janairu 2014. Ya lashe tseren da tazarar dakika 17.4 ga Sergey Ustiugov. Kwana uku kawai bayan ya lashe lambar zinare a gasar zakarun duniya na 'yan kasa da shekaru 23, ya zama na 8 a tseren gasar cin kofin duniya mai nisan kilomita 15 a Toblach, Italiya.