Despite going head-to-head with the Masters on CBS for most of its telecast, the U.S. Open on Sunday drew the highest viewership of the 2021 PBA Tour on FS1. The U.S. Open, which was won by Chris Via in a thriller over Jakob Butturff, drew average viewership of 465,000 (from measurements taken every 15 minutes during the show and averaged) for its 2-hour show starting at 1 p.m. Central time for a household rating of 0.30, according to ShowBuzzDaily.com’s weekly sports rankings. That...