Fri Aug 17, 2018 10:28 pm
Oops sorry for the confusion.
I think it applies to both hitters and runners.
I tried to generate some data from a season, but I had to keep daily logs, it was too much effort.
One thing I noticed though is that the success percentage of advancing a base doesn't appear to change much from one team to another, which goes contrary to what you would expect---you would think that pct would be higher with teams adopting a conservative baserunning. The only thing that seems to change is the raw number of attempts, much higher for aggressive team, as you would expect. I also noticed that sometimes, the arm combination that Hal tries to run upon is very low, sometimes 1-5, as if it was a pure random attempt to advance.
I think something along these lines is happening, explaining both the low difference in success percentage and the large difference of attempts under the conservative and the aggressive mode.
From 100 opportunities:
Conservative: threshold at 80%
Easy attempts: 30 attempts at 85%=25 successes, 5 fails.
Hard attempts: 0 attempt
Of the 70 other attempts, 8 random attempts at 50% success=4 successes, 4 fails
Overall conservative: 29 successes, 9 fails, 76%
Aggressive: threshold at 60%
Easy attempts: 30 attempts at 85%=25 successes, 5 fails. (the same attempts that occur in both mode)
Hard attempts: 40 attempts at 70% = 28 successes 12 fails (70% being at half mark btw 60% and 80%)
Of the 30 other attempts, 4 random attempts at 50% success=2 successes, 2 fails
Overall aggressive: 55 successes 19 fails, 74%
76% is better than 74%, but too small to be noticed by a naked eye, especially if you add all the noise. But 74 attempts are clearly more than 38, easily noticed by a naked eye.
The random attempts is something that I suppose must exist: they are moments Hal decides to send the runner no matter what. The success rate is probably low when these random attempts occur--maybe the success rate is a bit higher in the conservative mode---there are more good opportunities under the conservative mode. But still, these random attempts probably affect more the conservative mode because they are more frequent in the conservative mode, and they affect the conservative success percentage much greater than the aggressive success percentage .
While I may have set the thought experiment unfavorably for the conservative mode by setting a success rate of 50% for random attempts, I didn't factor for the fact that sometimes Hal does not throw the ball to harpoon the runner--Hal will prefer reach the cut-off man to stop the hitter to advance. So the percentage success of the aggressive mode is probably much better than seen in this thought experiment. And this affects much more favorably the success rate of the aggressive mode. Bottom line: while I may have a few details wrong in this thought experiment, they all point to the fact that the percentage difference