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The Seattle Mariners are a Major League Baseball team based in Seattle, Washington. They are in the Western Division of the American League. On April 6, 1977, Major League Baseball returned to Seattle when the Mariners played the California Angels before a Kingdome crowd of 57,762. The Mariners opened a new chapter in club history when they played in the new open air ballpark Safeco Field on July 15, 1999.

Seattle Mariners

Address and Phone:
Seattle Mariners
PO Box 4100
Seattle, WA 98194
(206) 346-4001