[uruguru]

Sorry but I've been crawling down this rabbit hole of fielding ratings and noticed something very peculiar about 'entire career'.

Hank Aaron played 27 games in 2B in 1955 and a smattering of games (23) at 2B & 3B over the rest of his career..

Ernie Banks played 1125 games at SS (a full-time starter) and 58 games at 3B from 1953 to 1961. He played a smattering of games (11) at 3B later in his career.

You can see their OOTP career fielding ratings in the attached image. Not only is Aaron rated higher at 2B than Banks is at SS, but his underlying infield ratings are vastly superior to Banks' even though "single season" fielding ratings show Banks to be an above-average defensive SS in his career.

Something must be off about how career fielding ratings are calculated.

Once again, I want to apologize to devs for being so anal-retentive about stuff like this. I know it's annoying.

How are these ratings calculated? Is the fact that Banks played so many games at 1B somehow dragging down his career infield ratings? And Aaron only played 1B at the end of his career, so his ratings at 2B are relatively unaffected?

If career ratings are averages of individual seasons (if... I don't know), maybe using root mean squares would help keep these late-career stints at 1B from dragging down career IF numbers at 2B/3B/SS.