ˌɔn sˈɪkstiːn dᵻsˈɛmbɚ tˈuː θˈaʊzənd fˈaɪv ɹˈɜːʃ tˈʊk hɪz fˈɜːst əfˈɪʃəl wˈɜːld kˈʌp pˈoʊdiəm wɪð ɐ sˈɛkənd ɪnðə tˈɛn kˌeɪˈɛm spɹˈɪnt, ænd ˌɔn fˈɪftiːn dʒˈænjuːˌɛɹi tˈuː θˈaʊzənd sˈɪks hiː wˈʌn hɪz fˈɜːst wˈɜːld kˈʌp vˈɪktɚɹi ɪn ɹˈuːpoʊldɪŋ wɛn hiː bˈiːt ɹˈæfɐˌɛl pwɑːɹɹˈeɪ.
On 16 December 2005 Rösch took his first official world cup podium with a second in the 10 km sprint, and on 15 January 2006 he won his first world cup victory in Ruhpolding when he beat Raphaël Poirée.