<P> The Mets--Yankees rivalry is the latest incarnation of the Subway Series, the competition between New York City's Major League Baseball teams, the AL Yankees and NL Mets . Until Interleague play started, the two teams had only met in exhibition games . Since the inception of interleague play the teams have met in every season since 1997 and faced off in the 2000 World Series . </P> <P> The Bay Bridge Series is the name of the games played between--and rivalry of--the Oakland Athletics of the AL and San Francisco Giants of the NL . The series takes its name from the San Francisco--Oakland Bay Bridge which links the cities of Oakland and San Francisco . Although competitive, the regional rivalry between the A's and Giants is considered a friendly one with mostly mutual companionship between the fans, as opposed to Cubs--White Sox, or Mets--Yankees games where animosity runs high . While many fans have a very strong dislike for the other team, some others actually like both . Bay Area baseball fans tend to disagree with each other on this topic . </P> <P> The series is also occasionally referred to as the "BART Series" for the Bay Area Rapid Transit system that links Oakland to San Francisco . However, the name "BART Series" has never been popular beyond a small selection of history books and national broadcasters and has fallen out of favor . Bay Area locals almost exclusively refer to the rivalry as the "Bay Bridge Series". </P> <P> Originally, the term described a series of exhibition games played between the two clubs after the conclusion of spring training, immediately prior to the start of the regular season . It was first used to refer to the 1989 World Series in which the Athletics won their most recent championship and the first time both teams had met since they moved to the San Francisco Bay Area . Today, it also refers to games played between the teams during the regular season since the commencement of interleague play in 1997 . Through August 2015, the A's have won 53 games, and the Giants have won 50 . </P>

Are the white sox and red sox rivals