Updated Position Ratings Formulas

[Huckleberry]

I was trying to figure out how skills translate between positions because some things weren't quite lining up right with the previously posted guide based on OOTP 13 here:

http://www.ootpdevelopments.com/boar...positions.html

Calculations per Position
Legend: Green is Constant Value, Red is Relative Weight of Defensive Rating and Blue stands for Handicap for that position.

P = ( ( (Infield Range - 62.5)/25*39.5) + ( (Infield Arm - 62.5)/25*6.25 ) + ( (Turn DP - 62.5)/25*3.25 ) + ( (Infield Error - 62.5)/25*15.75 ) + 153.5 )
C = ( ( (Catcher Ability - 62.5)/25*9.75) + ( (Catcher Arm - 62.5)/25*21.25 ) + 74 )
1B = ( ( (Infield Range - 62.5)/25*27.25) + ( (Infield Arm - 62.5)/25*2.25 ) + ( (Turn DP - 62.5)/25*2.5 ) + ( (Infield Error - 62.5)/25*13.75 ) + 113.5
2B = ( ( (Infield Range - 62.5)/25*21.5) + ( (Infield Arm - 62.5)/25*1.5 ) + ( (Turn DP - 62.5)/25*9 ) + ( (Infield Error - 62.5)/25*8.25 ) + 64.5 )
3B = ( ( (Infield Range - 62.5)/25*21.5) + ( (Infield Arm - 62.5)/25*6.75 ) + ( (Turn DP - 62.5)/25*3.5 ) + ( (Infield Error - 62.5)/25*7.75 ) + 66 )
SS = ( ( (Infield Range - 62.5)/25*23.5) + ( (Infield Arm - 62.5)/25*2 ) + ( (Turn DP - 62.5)/25*8 ) + ( (Infield Error - 62.5)/25*7.5 ) + 50 )
LF = ( ( (Outfield Range - 62.5)/25*31.5) + ( (Outfield Arm - 62.5)/25*4.25 ) + ( (Outfield Error - 62.5)/25*6.25 ) + 80 )
CF = ( ( (Outfield Range - 62.5)/25*43) + ( (Outfield Arm - 62.5)/25*1.75 ) + ( (Outfield Error - 62.5)/25*3.5 ) + 39 )
RF = ( ( (Outfield Range - 62.5)/25*33.75) + ( (Outfield Arm - 62.5)/25*6.25 ) + ( (Outfield Error - 62.5)/25*6.25 ) + 71 )
DH …. just kidding
If you need to adjust calculations either to scale 10 or 200 - for first option divide all values by 10, for second multiply with 2.

Plus we know that height is now a consideration for first baseman. So I ran some regression analyses and what I came up with is posted below. Note that I ran my analyses using the actual internal ratings (0-255) so keep that in mind:

Calculations per Position
Legend: Green is Constant Value, Red is Relative Weight of Defensive Rating and Blue stands for Handicap for that position.

P = Didn't run
C = ( ( (Catcher Ability - 125)/25*19.5) + ( (Catcher Arm - 125)/25*19.5 ) + 133 )
2B = ( ( (Infield Range - 125)/25*21.5) + ( (Infield Arm - 125)/25*1.5 ) + ( (Turn DP - 125)/25*9 ) + ( (Infield Error - 125)/25*8.25 ) + 129 )
3B = ( ( (Infield Range - 125)/25*13.75) + ( (Infield Arm - 125)/25*18 ) + ( (Turn DP - 125)/25*3.5 ) + ( (Infield Error - 125)/25*7.75 ) + 120.5 )
SS = ( ( (Infield Range - 125)/25*25.5) + ( (Infield Arm - 125)/25*2 ) + ( (Turn DP - 125)/25*8 ) + ( (Infield Error - 125)/25*7.5 ) + 93.75 )
LF = ( ( (Outfield Range - 125)/25*31.5) + ( (Outfield Arm - 125)/25*4.25 ) + ( (Outfield Error - 125)/25*6.25 ) + 160 )
CF = ( ( (Outfield Range - 125)/25*43) + ( (Outfield Arm - 125)/25*1.75 ) + ( (Outfield Error - 125)/25*3.5 ) + 78 )
RF = ( ( (Outfield Range - 125)/25*23) + ( (Outfield Arm - 125)/25*16.75 ) + ( (Outfield Error - 125)/25*4.25 ) + 135.5 )

The catcher formula is off somehow as the regression is not nearly perfect and I believe I'm missing an input. The rest are pretty good. Compared to the previous ratings, here are the changes in how OOTP calculates position ratings:

C - Catcher ability is now just as important as catcher arm
2B - Exact same
3B - Range became much less important and arm became much more important
SS - Range became slightly more important
LF - Exact same
CF - Exact same
RF - As with third base, arm became much more important at the expense of range, but error also became slightly less important

First base was a way more complicated beast but I have it nailed down pretty well. My final formula consistently overestimates the final rating by 0-3 points, though, so it's only close. The height adjustment is dead on, though.

1B = Skill Rating * Height Adjustment

The skill rating is the sum of the factors as shown below:

Skill Rating = Infield Range Factor + Infield Error Factor + Infield Arm Factor + Turn Double Play Factor

The IA and TDP Factors are simply those ratings divided by 70. The Infield Range and Infield Error factors have a break point at 90, though.

For IR up to 90, the IR factor is IR/30. For IR>90, the IR factor is 30 + IR*2/25

For IE up to 90, the IE factor is IE/5. For IE>90, the IE factor is 18 + IE/25

After adding those 4 factors up you now multiply by the height adjustment.

Height Adjustment = 1 + (Height-155)/15

where the height is in centimeters. So if you have a fielder who is 100 across the board in all fielding skills on the 200 scale, if he is 168 centimeters tall (about 5'6") he will have a first base rating of about 97. If he is 193 centimeters tall (about 6'6") it will be about 184.