[ohiodevil]

This is directly from the manual

Running Speed

Running Speed is a measure of how quickly a player can run from one base to the next. Players with a high rating in Running Speed are more of a threat to steal bases, and are more likely to advance further on a ball in play. Running Speed is strictly for offensive play. For example, Running Speed does not factor into an outfielder's range. However, Running Speed and Defensive Range are linked internally. For example, as a player ages, his speed and range will generally decline at the same pace.

http://manuals.ootpdevelopments.com/...=other_ratings