After 660 days, the USBC Open Championships is on again. The COVID-19 pandemic resulted in the cancellation of the 2020 Open Championships scheduled for the National Bowling Stadium in Reno and the delay of the start of the 2021 Open Championships to Saturday at South Point in Las Vegas.    The Open Championships were last held in 2019, also at South Point. That year, all of the competition was at the Plaza; this year, team is at the 60-lane Plaza and minors are at the 64-lane...