MLB World Series Home Field Advantage

As discussed in "Not in Our House! A Decade ofchampion and National League champion until 2002.
Home Court Advantage in American Sports"Beginning in 2003, the team from the league that
there is much less home advantage in baseballwon the All Star Game was designated as Team
than in basketball or football, during regular seasonA for the World Series.
play. Major League Baseball teams, on average,So, how much benefit does Team A derive from
win about 54% of their home games and 46%its "home field advantage?" In the fifty World
of their away games during the regular season.Series played from 1958 through 2008 (there
When I do presentations on home courtwas no World Series in 2004 due to the players'
advantage I'm often asked, "What about thestrike), Team A won the Series 26 times (52%)
playoffs?" Well, let's see what happens in theand Team B won the Series 24 times (48%). In
World Series.other words, the team that supposedly had a
The MLB World Series pits the National Leaguehome field advantage derived practically no
champion against the American League championbenefit from it. This suggests that a lot of the
in a 7-game series. One of the teams - let's call ithype about home field advantage, as it pertains
Team A - hosts the first two games of theto the World Series, is based more on illusion than
series at its home ball park. The next threefact.
games are scheduled at Team B's ball park, andHowever, something that seems to definitely
the final two games are scheduled at Team A'sbenefit a team is winning the first game of the
ball park. This is often referred to as a 2-3-2Series. In the past fifty World Series, the team
schedule. I find it convenient to refer to it as anthat won the first game went on to win the
AA-BBB-AA schedule. The team at whose ballSeries 68% of the time. Think about it; this
park the series begins (Team A) is said to havemeans that you won more than twice as often
"home field advantage" because in a 7-gameas you lost (68% vs. 32%). Even more dramatic,
series four of the seven games are played at itsif the away team (Team B) won the first game,
home field.it went on to win the Series 72% of the time! It
In the NBA, the team with the best seasonseems like the key to winning the World Series
record gets designated for home court advantagecan be summarized as follows - win the first
in the playoffs (Team A). However, in MLB Teamgame.
A was alternated between the American League