The Blackhawk Curling Club is a three sheet facility located within the Rock County Fairgrounds in Janesville, Wisconsin, The roughly 125 members participate in men's, women's, mixed, open and doubles leagues throughout the week from November through March. The club also hosts a Women's Bonspiel (First Chance) the first weekend in November, a Mixed Bonspiel the third weekend in January, a Men's Bonspiel (Last Chance) the third weekend in March and the Festivus Open Bonspiel the second weekend in December.