Yeah that wasn't a great answer. Makes him look kinda dumb but he's covering his behind.
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).
And then if you want more info.
When we first introduced "Sprint Speed" last year, it was the first time directly measured data on the top speed of runners was available, and most of the results reflected exactly what your eyes told you. Byron Buxton and Billy Hamilton were at the top, around 30 feet per second
www.mlb.com