The Case of the Player With Speed Without Speed
There’s a pretty strong and obvious relationship between speed and baserunning. Speed is best demonstrated when running, and “baserunning” has “running” right in the word. There usually isn’t very much interesting to say about a fast guy who runs the bases well. Likewise, there usually isn’t very much interesting to say about a slow guy who runs the bases poorly. It’s more uncommon to hear about a fast guy with baserunning limitations, but we can make sense of that — baserunning skill isn’t 100% footspeed. Speed’s just a component, along with instincts and awareness and reaction time.
But it’s a major component. Not all good runners will be good baserunners, but it feels like all good baserunners should be good runners. Check out the top of last year’s baserunning value leaderboard. Jacoby Ellsbury is a good runner. Rajai Davis is a good runner. Eric Young, Elvis Andrus, Mike Trout, Alcides Escobar — all these guys, good runners. An almost infallible rule is, you need to be able to run pretty well to be able to run the bases pretty well. But note that I had to throw an “almost” in there. And I had to throw an “almost” in there on account of Daniel Murphy, baseball’s premier player with speed without speed.

