The Blackhawk Curling Club is a three sheet facility located within the Rock County Fairgrounds in Janesville, Wisconsin, The roughly 140 members participate in men's, women's, mixed, open and mixed 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 and a Men's Bonspiel (Last Chance) the third weekend in March. The club will also start to host an Open Bonspiel starting in December of 2022.