Question: what is the difference between asa and usssa softball?
Answer: For instance, ASA approved bats must adhere to the 98 mph batted-ball speed standard, while bats approved for USSSA and other associations are allowed to have a much hotter 100+ mph batted ball speed and a bat performance factor (BPF) of 1.20 or sometimes more. You can find a full rundown of rules and regulations here.