1) Curling competition 2) Curling match 
A Bonspiel is a curling tournament, consisting of several games, often held on a weekend. Historically prior to the twentieth century many were held outdoors on a frozen freshwater loch. Though not mandatory, curling teams involved in bonspiels often wear theme costumes. Today almost all bonspiels are held indoors on specially prepared artificial ...
• (n.) A cur/ing match between clubs.
Bon'spiel noun [ Scot.; of uncertain origin.] A cur...ing match between clubs. [ Scot.]
a competition or meet in curling at which teams from several clubs or districts compete with one another.