OOTP Developments Forums - View Single Post

pstrickert · 03-27-2019, 10:46 AM

Mike Garlon developed the formula for park factors. This is how he explained it:

I created all of the park factors used for OOTP. They are indeed based on the park effect on runs. What is done for each season and each park is take the park's 3-yr factor on runs and then create an appropriate increase or decrease in hits and HR that reproduce that park's impact on scoring runs. Each season this value needs to be recalculated using a quadratic equation because the distribution of singles, doubles, triples, and HRs and their impact on scoring changes each season in history.

I'm sure many think that it seems odd that the doubles and triples factors are always at 1.00, but actually when you change the BA factor to say 1.05 you are also raising doubles and triples by 5% as well simply because you are generating that many more hits overall, so we don't need an additional factor for doubles and triples as it is implied.

So basically it's one factor that is being used across BA/2B/3B/HR in order to replicate the scoring environment. If scoring is up say 10% in a given park, you need only boost all hits by a fraction of that amount, calculated through a quadratic equation, in order to reproduce the same scoring affect the park should have.

03-27-2019, 10:46 AM	#2
pstrickert Hall Of Famer Join Date: Dec 2005 Posts: 17,038	Mike Garlon developed the formula for park factors. This is how he explained it: I created all of the park factors used for OOTP. They are indeed based on the park effect on runs. What is done for each season and each park is take the park's 3-yr factor on runs and then create an appropriate increase or decrease in hits and HR that reproduce that park's impact on scoring runs. Each season this value needs to be recalculated using a quadratic equation because the distribution of singles, doubles, triples, and HRs and their impact on scoring changes each season in history. I'm sure many think that it seems odd that the doubles and triples factors are always at 1.00, but actually when you change the BA factor to say 1.05 you are also raising doubles and triples by 5% as well simply because you are generating that many more hits overall, so we don't need an additional factor for doubles and triples as it is implied. So basically it's one factor that is being used across BA/2B/3B/HR in order to replicate the scoring environment. If scoring is up say 10% in a given park, you need only boost all hits by a fraction of that amount, calculated through a quadratic equation, in order to reproduce the same scoring affect the park should have.