http://tinyurl.com/a23t86j
For defense, the average top-10 leader has saved 15 runs, or 1.5 wins,
relative to league average over the last five seasons. For baserunning, a
top-10 leader has been worth ca. 8.0 runs per season over the last five years.
前十名的腿 防守上可以多守15分 跑垒可以多跑8分
So, broadly speaking, we can say that the upside for a player with elite
speed — in terms of defense and baserunning — is something like 20-25 runs,
or 2.0-2.5 wins.
综合防守和跑垒 顶级腿可以多赚20-25分 相当于2-2.5胜