# Stories tagged baseball science

Aug
24
2009

## Amazing triple play! What are the mathematical odds?

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Philadelphia Phillies' second-baseman Eric Brunlett made an amazing and unassisted game-ending triple play against the New York Mets. The extremely rare play came in the ninth inning with the Mets trailing by two runs but threatening with runners on first and second base and no outs. Both base runners were stealing on a 2-2 pitch when the Mets batter hit a line drive right to Brunlett, who caught the ball for the first out, stepped on second base for the second out, then tagged out the runner from first. It's only the 15th unassisted triple play in major league history, and only the second to end a game. The poor Mets. The odds of this happening must be astronomical, but I'll let someone else figure that out.

May
18
2009

## Why are so many home runs being hit at new Yankee Stadium?

House of home runs: Home runs have been soaring out of new Yankee Stadium at a record clip. Is there any science behind the factors causing that to happen?Courtesy The Silent Wind of Doom
I wish I would have come across this information a week earlier. I could have passed it along to Twins manager Ron Gardenhire and maybe helped the squad avert the disaster it ran into this weekend in the Bronx.

National Public Radio devoted a half hour to discussing the scientific and statistical factors that might be at play in the increased number of home runs being hit at the new New York Yankee Stadium. As any Twins fan can tell you, the homes kept flying out of the park this weekend when the Twins visited the new stadium, resulting in three-straight Twins losses. Most puzzling about this increased number of homers is that the interior dimensions of the playing field were planned to be exactly like the old Yankee Stadium.

You can hear the stadium discussion here. If you don't have audio capability on your computer, I'll quickly summarize the gist of the discussion.

First, the numbers. This report was done on May 15. Up to that point, there had been 47 home runs hit in the new ball park compared to 24 homers in the same number of games played at the start of last season in the old park. This year's average is a whopping 3.6 homers per game.

A wind studies specialist points out that the alignment of the new stadium is slightly different than the old stadium. In the new park, home plate to right field is directly set up west to east. The old park was shifted about 20 degrees in a northwest to southeast orientation. And predominant winds in the area go west to east.

Another wind factor is that the new stadium is shallower from top to field than the old one. That means less deflection or impeding the wind flow into the new stadium than the old one.

And while the posted outfield wall dimensions of the new stadium are identical to the old park, there is a difference in right field. There, the once concave outfield wall is now straight to accommodate a new out-of-town games scoreboard. Six home runs hit this year landed in areas behind this new scoreboard that would have been in the park in old Yankee Stadium.

A sports writer from ESPN on the show also points out that the sample of games to draw any conclusions from right now is just too small. It's standard practice to figure in three full seasons (243 games) to come up with an "even" reading of what's normal for a ballpark, he notes. The 13 games played so far amount to just 5% of that reading.

Two line-up considerations for the Yankees. They've had a couple starting pitchers struggle early this season an injuries to position players have made their line-up be predominantly left-handers, who tend to hit the ball to right field more than right-handers. This year's baseballs might be flying farther in general, too, he said. Home run production is up all across the major leagues so far this season.

So why do you think more home runs are being hit more often in Yankee Stadium? Share your thoughts here with other Buzz readers. I know for me, it gives me one more great reason to hate the Yankees.