Serena Williams was mistreated by the umpire during the U.S. Open final — but it’s not surprising. These calls are a blatant attempt to stifle Williams’ success in a sport dominated by white men.

The 2016 U.S. Open Championship returned this past weekend to historic Oakmont Country Club in Oakmont, Pennsylvania, for the ninth time –– more than any other course in the world. Praised as one...