It 's a likely preview of the eventual championship game .
The United States and Japan , which are setting the pace atop the 2015 World Cup of Softball standings , will face off on Thursday night in the marquee matchup of the round - robin stage .
United States 's a likely preview of the eventual championship game .
The United States and Japan , which are setting the pace atop the 2015 World Cup of Softball standings , will face off on Thursday night in the marquee matchup of the round - robin stage .