The major league owners agree to install warning tracks made of cinder in front of outfield fences before the start of next season. The origin of the concept began at Yankee Stadium, where an actual running track, used in the ballpark’s track and field events, helped fielders know their proximity to the outfield fence when attempting to make a play.

This Day In Baseball

On July 12, 1949 — The major league owners agree to install warning tracks made of cinder in front of outfield fences before the start of next season. The origin of the concept began at Yankee Stadium, where an actual running track, used in the ballpark’s track and field events, helped fielders know their proximity to the outfield fence when attempting to make a play.

Sources:
National Pastime January 28

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