An investigator hired by the global antidoping regulator found no bias toward China in a case that has outraged Olympic athletes and led to an F.B.I. investigation.

A young skater’s emergence signals a pivot in the way an Olympic power defines success. But its handling of the table tennis competition suggests old expectations may persist, too.

A young skater’s emergence signals a pivot in the way an Olympic power defines success. But its handling of the table tennis competition suggests old expectations may persist, too.