https://tinyurl.com/43cxzhda
Sprint Speed is Statcast’s foot speed metric, defined as “feet per second
in a player’s fastest one-second window” on individual plays. For a player’
s seasonal average, the following two types of plays currently qualify for
inclusion in Sprint Speed. The best of these runs, approximately two-thirds,
are averaged for a player’s seasonal average.
* Runs of two bases or more on non-homers, excluding being a runner on second
base when an extra base hit happens
* Home to first on “topped” or “weakly hit” balls.
The Major League average on a "competitive" play is 27 ft/sec, and the
competitive range is roughly from 23 ft/sec (poor) to 30 ft/sec (elite). A
Bolt is any run above 30ft/sec. A player must have at least 10 competitive
runs to qualify for this leaderboard.
其實上面就有解釋了
*非全壘打狀態下，至少兩個壘包（含）以上的跑壘，包括擊出二壘安打的跑壘、原
本在二壘然後藉由安打跑回本壘得分的跑壘等。
*打到球的上緣或擊出軟弱滾地球後，往一壘衝刺的跑壘。
跑壘極速算法就是符合上述兩個條件當中篩出最快的三分之二來做平均
23 ft/sec (Poor)
30 ft/sec (elite)
above 30 ft/sec (Bolt)