Koschischek waxay markii ugu horreysay ka soo muuqatay ciyaaraha caalamiga ah ee Ciyaaraha Caalamiga ah ee Ciyaaraha 2007 ee Hyderabad, India, halkaas oo ay ku kasbatay billad naxaas ah oo ah 100 m oo qaab xor ah hal ilbiriqsi oo toban meelood meel ah (0.10) ka dambeysa Camelia Potec ee Romania, iyada oo diiwaangelisay waqti 57.62 ilbiriqsi ah. Sanadkii 2008, Koschischek wuxuu gaadhay semifinalka qaabka xorta ah iyo balastar (labadaba 100 m) ee Horyaalka Yurub
Eindhoven, Netherlands, oo leh waqtiyo kala duwan oo ah 56.15 iyo 59.61. Iyada oo ka soo baxday FINA B-cut labada dhacdo, waxay dammaanad ka qaadatay booska kooxda dabaasha ee Austria ee Olombikada.