A few days after releasing the general calendar for the 2012 season, the Czech Baseball Association follows up with the team lineups of the Czech Extraleague and the Ceskomoravska Liga. It comes with a surprise, as VSK Express Brno apparently withdraws from the competition in the Extraleague following a sixth-place finish. Skokani Olomouc, which would have demoted after losing the promotion/relegation series against Olympia Blansko, remains in the top league in Czech Baseball.
EXTRALEAGUE
- Technika Brno
- Draci Brno
- Kotlářka Praha
- Eagles Praha
- Arrows Ostrava
- Cardion Hroši Brno
- Olympia Blansko
- Skokani Olomouc
ČESKOMORAVSKÁ LIGA
- Sokol Hluboká
- Draci Brno B
- Klasik Frýdek-Místek
- Tempo Titans Praha
- Kotlářka Praha B
- Blesk Jablonec
- Třebíč Nuclears
- Eagles Praha B
- SaBaT Praha
- Orlice Choceň
- Arrows Ostrava B
- Hroši Brno B