exhibition game; friendly match
General sports term for a match played for practice or goodwill, not part of a regular competition.
Several exhibition games are scheduled before the season.
interleague game (Central vs. Pacific League)
Specifically refers to regular-season interleague play between Nippon Professional Baseball's Central and Pacific Leagues.
今年の交流戦では、セ・リーグが勝ち越した。
The Central League had a winning record in this year's interleague games.