interleague play
... that out of the thirteen Nippon Professional Baseball seasons that have included interleague play, the Pacific League has beaten the Central League in all but one?
... that out of the thirteen <a href="./Nippon_Professional_Baseball" id="mwAjs" rel="mw:WikiLink" title="Nippon Professional Baseball">Nippon Professional Baseball</a> seasons that have included <b id="mwAjw"><a href="./Interleague_play_(NPB)" id="mwAj0" rel="mw:WikiLink" title="Interleague play (NPB)">interleague play</a></b>, the Pacific League has beaten the Central League in all but one?