Quote: Originally Posted By cbaltz_ca on 12/31/2009
OK - I'm going to show my *** here, and ask what the hell is a hit:walk ratio??? Baserunners are baserunners - what do I care if it's a hit or a walk that gets them on base? I can understand trying to take advantage of your +hits stadium, but if you have guys getting on base what should it matter?? I'm confusing myself trying to figure it out...
I am not sure eactly what boog wrote about, but I do understand often the price of a walk is a non-hit. For example lets say you have a runner on 2nd that you want to get home. To keep the problem simple (1) assume a hit, any hit, gets the job done, (2) assume an "average" pitcher (3) ignore normalization. Now guess which hitter would be better at acomplishing the feat? '84 Kirby Pucket (.296/.320/.336) or '57 Mickey Mantle(.365/ .512/ .665).
Surprisingly, Pucket will get a hit 28.5% of the time while Mantle does it only 28.0% of the time. The result is a bit counter-intuitive and shows how a player's OBP can be at the expense of hits. In this case Mantle walks a lot, about 23% of the time, and everytime he does, he isn't getting a hit.
The calculations are simple:
h/pa ~= avg * (1-obp)/ (1-avg)
bb/pa ~= (obp-avg) / (1-avg)