OOTP Developments Forums - View Single Post

Garlon · 09-18-2021, 04:58 PM

If you use real stats there is an OOTP adjustment that Markus built into the game so that when using real stats you would not get excessive single season HR results.

The neutralized stats are a complete rebuild of the stats that are indeed neutralized against home park factors for BA/2B/3B/HR by home ballpark and whether the player bats L, bats R, or bats Both. I do not know the way Markus handles the adjustments for real stats, but I can give you some insight on the neutralized stats file.

Consider a player who had 40 HR and played in a home park with a 1.250 HR factor for RHB in a league with 8 teams. We figure half of the games are at home and half on the road. The entire league ballpark HR factors must average to 1.000 and there are 8 teams so that is 8 * 1.000 = 8.000 The home ballpark we said is 1.250, so the other 7 ballparks combines are 8 - 1.250 = 6.750. We then divide this by 7 to get 6.750/7 = 0.964 as the average of the road ballparks for that player. So the player had a HR environment of (1.250 + 0.964)/2 = 1.107. This means that player had a 10.7% advantage for HR that season. So we take 40/1.107 = 36.13 = 36. This player has 36 HR for their neutralized stats that season.

This same process is done for BABIP/2B/3B too as there are park factors for LHB and RHB for each category. These factors were built specifically for OOTP from the historical data for those stadiums in order to do this process.

The game will not reference the era_ballparks file when importing players from the neutralized stats file, so if you change the era_ballparks file it will not affect the player imports or their ratings.

I suggest taking a look at several players real and neutralized stats and decide for yourself. There is actually very little difference for most players. The biggest difference are Ruth and Ott as far as I know since they played in the friendliest HR environments so they end up getting the biggest adjustments.

This is done for pitcher HR allowed too. So when you look at pitcher neutralized stats they will be the same as their real stats except for slight differences in HR allowed though.

There game currently does have a version of the Bats L and Bats R historical data but it does not go all the way to 1901.

09-18-2021, 04:58 PM	#35
Garlon Hall Of Famer Join Date: Jun 2004 Posts: 4,268	If you use real stats there is an OOTP adjustment that Markus built into the game so that when using real stats you would not get excessive single season HR results. The neutralized stats are a complete rebuild of the stats that are indeed neutralized against home park factors for BA/2B/3B/HR by home ballpark and whether the player bats L, bats R, or bats Both. I do not know the way Markus handles the adjustments for real stats, but I can give you some insight on the neutralized stats file. Consider a player who had 40 HR and played in a home park with a 1.250 HR factor for RHB in a league with 8 teams. We figure half of the games are at home and half on the road. The entire league ballpark HR factors must average to 1.000 and there are 8 teams so that is 8 * 1.000 = 8.000 The home ballpark we said is 1.250, so the other 7 ballparks combines are 8 - 1.250 = 6.750. We then divide this by 7 to get 6.750/7 = 0.964 as the average of the road ballparks for that player. So the player had a HR environment of (1.250 + 0.964)/2 = 1.107. This means that player had a 10.7% advantage for HR that season. So we take 40/1.107 = 36.13 = 36. This player has 36 HR for their neutralized stats that season. This same process is done for BABIP/2B/3B too as there are park factors for LHB and RHB for each category. These factors were built specifically for OOTP from the historical data for those stadiums in order to do this process. The game will not reference the era_ballparks file when importing players from the neutralized stats file, so if you change the era_ballparks file it will not affect the player imports or their ratings. I suggest taking a look at several players real and neutralized stats and decide for yourself. There is actually very little difference for most players. The biggest difference are Ruth and Ott as far as I know since they played in the friendliest HR environments so they end up getting the biggest adjustments. This is done for pitcher HR allowed too. So when you look at pitcher neutralized stats they will be the same as their real stats except for slight differences in HR allowed though. There game currently does have a version of the Bats L and Bats R historical data but it does not go all the way to 1901. Last edited by Garlon; 09-18-2021 at 05:03 PM.