Mariner team defense since moving into Safeco Field

October 19, 2007 · Filed Under Mariners · 37 Comments 

2000-2007, as measured using defensive efficiency: how many non-HR balls were put into play and turned into outs.

Depressing chart showing the rapid decline of the Mariner defense

Top line is the best defense in baseball that year, bottom line is the worst defense in baseball that year. In 2001 and 2003 the Mariners were the best defense in baseball as measured this way.