Tags: Rugby League, Sports League.
The KB Extraliga is a rugby club competition played in the Czech Republic and is the top level of rugby in the country. There is promotion between the KB Extraliga and the next (and only other) level down the KB První Liga.As the name implies the league is sponsored by Komerční banka (KB).The season usually runs from September to May although in the 2008 season it was only from August through November 2008.