We own you: each team’s best record vs. another franchise since 2000

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Here’s something I thought would be quick and fun on a slow news day: each team’s best record versus a league opponent since 2000.  I’m not including the small-sample interleague results.

Arizona: 46-32 vs. Pittsburgh (.590 winning pct.)
Atlanta: 52-31 vs. San Diego (.627)
Chicago: 107-82 vs. Pittsburgh (.566)
Cincinnati: 43-33 vs. Florida (.566)
Colorado: 52-32 vs. Wash/Mon (.619)
Florida: 128-80 vs. Wash/Mon (.615)
Houston: 43-28 vs. Colorado (.606)
Los Angeles: 57-27 vs. Pittsburgh (.679)
Milwaukee: 45-35 vs. Arizona (.563)
New York: 48-35 vs. Colorado (.578)
Philadelphia: 51-29 vs. San Diego (.638)
Pittsburgh: 43-46 vs. Colorado (.483)
St. Louis: 55-25 vs. San Diego (.688)
San Diego: 50-28 vs. Washington (.641)
San Francisco: 49-26 vs. Houston (.653)
Wash/Mon: 44-34 vs. Pittsburgh (.564)

Baltimore: 56-34 vs. Kansas City (.622)
Boston: 61-34 vs. Detroit (.642)
Chicago: 124-81 vs. Kansas City (.605)
Cleveland: 57-35 vs. Tampa Bay (.620)
Detroit: 59-46 vs. Texas (.562)
Kansas City: 105-104 vs. Detroit (.502)
Los Angeles: 68-39 vs. Kansas City (.636)
Minnesota: 131-80 vs. Kansas City (.621)
New York: 62-24 vs. Kansas City (.721)
Oakland: 68-29 vs. Baltimore (.701)
Seattle: 59-44 vs. Kansas City (.573)
Tampa Bay: 51-38 vs. Kansas City (.573)
Texas: 59-44 vs. Kansas City (.573)
Toronto: 127-84 vs. Baltimore (.602)

It shouldn’t surprise anyone that a lot of clubs are beating up on the Royals and Pirates. Seven of the 13 AL clubs have their best records against Kansas City, which is pretty amazing even if somewhat expected. Only four of the 15 NL possibilities have their top marks against the Pirates, but the Pirates have the singular distinction of not being above .500 against any leaguemates. Even in interleague play, the best they can boast is 5-4 records against the Orioles and Rays.

Of course, the Royals are only above .500 against the one team (Detroit). Their next best mark is .455, coming against the Indians (95-114).

We can see here that it’s easier to compile a big winning percentage over 70-90 games, rather than 200+. That’s why most of the clubs above have a non-division rival listed as their top opponent. The best mark for any club against a division rival is the Yankees’ .670 winning percentage against the Orioles (138-68). The Red Sox have also feasted on Baltimore, coming in at .633 (131-76).