[swat-spas]

I haven't actually tested the new version but the old 07/8 versions had the following breakpoints and values per rate based on positions, which results in things like the variation between 3b and SS raw fielding ratings. I generated 'averages' by taking the average ratings of a randomly generated league and adjusting it down to a 100 average per position. Those should be seen as approximations, nothing more. These ratings are from the player editor and use a 250 scale. edit: I checked and its usually a 110 average, but that's still a decent baseline.


C
Min Arm: 10, value per point >min 1.7, average ~93
Min Rng: 10, .78, 100
Min E: 1, .12, 50

1b:
Arm: 1, .18, 40
Rng: 1, 2.18, 50
E: 1, 1.08, 66
DP: 1, .18, 33

2b
A: 40, .14, 70
R: 40, 1.72, 115
E: 50, .66, 110
DP: 60, .72, 115

3b
A: 70, .59, 150
R: 40, 1.72, 105
E: 40, .63, 105
DP: 20, .28, 85

SS
A: 60, .16, 115
R: 70, 1.88, 140
E: 50, .6, 125
DP: 60, .64, 125

CF
A: 40, .14, 100
R: 90, 3.4, 140
E: 40, .28, 115

LF
A: 40, .36, 100
R: 40, 2.68, 100
E: 40, .54, 105

RF
A: 40, .58, 100
R: 55, 2.69, 100
E: 40, .58, 105

I myself go in and edit the ratings, regardless of things like 'range factor vs era' available at B-R, which doesn't actually tell us much about the player's defensive abilities (but is better than nothing)---I do use the F% vs era. I usually end up using an adjusted average of DWS and FRAR (baseball prospectus) to get an overall rating and then go from there. I'm not saying these are the best fielding ratings, but they seem to be the only ones available across history and they pass the 'feel' test by using both.

SB/CS for catchers is available only after '57 (play by play data is needed). For players before that all we have is assists and assumptions. Rodriguez and Bench had the best arms when I did my runs with actual catcher data. Piazza was the worst. Keep in mind that often LOWER assist totals are paradoxically better therein.