Rubuta ci gaba don wannan sakin layi - Zelenka ya kasance na 19 a 2000 Junior Duniya a Oberstdorf, Jamus, kuma na 8 a 2001 Junior Duniya
a birnin Sofia, a ƙasar Bulgaria. A watan Oktoba 2001, ya lashe lambar azurfa a aikinsa na JGP a Poland.