[1] She posted a long-course national record time of 25.99 seconds, by winning the 50 m freestyle at the 2008 Czech Winter Championships in Pardubice.

Kazikova made her first Czech team, as a 28-year-old, at the 2004 Summer Olympics in Athens, where she competed only in individual and relay freestyle events.

She also joined with her fellow swimmers Jana Myšková, Petra Klosová, and Ilona Hlaváčková for the women's 4 × 100 m freestyle relay.

Swimming the anchor leg, Kazikova recorded a split of 57.90 seconds, and the Czech team went on to finish heat one in seventh place and thirteenth overall, for a total time of 3:46.83.

[2][5] She challenged seven other swimmers in the eighth heat, including Bahamas' Arianna Vanderpool-Wallace, Jamaica's Natasha Moodie.