The senior outdoor summer league runs from April through September. Sixteen teams from across the country, compete in the Cricket Switzerland Premier League, a 40 over cricket league format.
The qualification round consist of two geographically split divisions, playing one 40 over format cricket match against each team (winner=10pts; no result/draw/tie=5pts; loss=0pts; 1 bonus point=Youth/Woman).
If the number of points is equal, positions in the league are decided on Net Run Rate (NRR).
The first four teams from each division progress to a quarter-final stage and the winner is decided by a final 40 over format match to become Cricket Switzerland's 40 over cricket league champions with prize money for the champions and for the runners-up.
Participating clubs in 2018 have been confirmed as follows:
|Western Division||Eastern Division|
|1||Cossonay CC||1||Nomads CC|
|2||Genev XI Stars CC||2||Olten CC|
|3||CERN CC||3||Power CC|
|4||Geneva International CC||4||Winterthur CC|
|5||Geneva CC||5||St Gallen CC|
|6||Geneva SL CC||6||Zug CC|
|7||Berne CC||7||Zurich Lions CC|
The Cricket Switzerland Premier League is run under the auspices of Cricket Switzerland and in accordance with Cricket Switzerland's 40 over competition rules & regulations.
|2018||St Gallen CC||Olten CC|
|2017||Nomads CC||Olten CC|
|2016||Nomads CC||Olten CC|
|2015||Power CC||Nomads CC|
|2014||Nomads CC||Power CC|
|2013||Olten CC||Berne CC|
|2012||Geneva XI Stars||Olten CC|
|2011||Berne CC||Geneva XI Stars|
|2010||Berne CC||Olten CC|
|2009||Power CC||Berne CC|
|2008||Nomads CC||Royal Zurich CC|
|2007||United CC||Nomads CC|
|2006||Berne C||Geneva CC|
|2005||Geneva CC||Nomads CC|
|2004||Geneva CC||Nomads CC|
|2003||United CC||Berne CC|
|2002||Winterthur CC||Geneva CC|
|2001||Berne CC||United CC|
|2000||Winterthur CC||Berne CC|
|1999||Berne CC||Geneva CC|
|1998||Prince CC||Berne CC|
|1997||Berne CC||Basel CC|
|1996||Alpine CC||Berne CC|