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What is the difference between the cactus and grapefruit leagues?

Posted by

April 04, 2007

A lot of studies have been done to determine which factors are better or worse for hitters and pitchers. The most significant factors are temperature, altitude, and ballpark dimensions. (Some argue humidity as well, but the Baseball Scoreboard 1993 found no such evidence.)

Almost all Spring Training games are played in either Florida or Arizona. Setting aside a time-consuming look at their ballparks, let's talk about what we quickly know about temperature and altitude. Hot temperatures mean hot offenses, but both states have warm climates in March. Altitude is where they differ significantly. Florida coastal cities are barely above sea level. Even the inland cities are just a few hundred feet in altitude. Arizona sits in the Rocky Mountains. The Phoenix area is about 1,100 feet above sea level (9 teams) and the Tucson area is about 2,500 feet (3 teams).

Did elevation make a difference in this year’s Spring Training scoring?

12.5 Cactus League runs per game
9.9 Grapefruit League runs per game

That is huge. How about homers?

2.15 Cactus League home runs per game
1.60 Grapefruit League home runs per game

Clearly, the elevated terrains of the Rocky Mountains also elevate baseball's offense.

What does it mean? Those low ERAs in Florida may be a bit suspect, as well as those high batting averages in Arizona.


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