ATG9 – Normalized Error Ratings

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RiggoDrill

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ATG9 – Normalized Error Ratings

PostMon Jan 20, 2020 1:16 pm

As of ATG5, all player cards (including pitchers) were normalized to 1970* error rates.

Since then, not sure how SOM is normalizing errors – it appears they adjust cards from much earlier eras (like pre-war and especially pre-1920), but do not adjust cards for more modern players. This has two effects:

#1: Error normalization is not consistent across all cards
#2: More recent seasons (especially since 1990) have an advantage since normalized errors would go up – in some cases a lot - for seasons since the 1970 (error rates have plummeted in recent years)
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FrankieT

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Re: ATG9 – Normalized Error Ratings

PostMon Jan 20, 2020 8:18 pm

Good point.

The pre war era stat collection was not just less reliable and lower fidelity, but also reflected a different era's view of the game.

Ball hits the glove and it was an error. No matter that the 2B ran from straight up play to the SS side for a backhand. Too bad. Oh sorry, did we forget to grade out the rocks and divots in the ground? There's 4" crabgrass in the infield grass?
These days, it's a hit if it takes a bad hop because it was rocketed down third and would have been such a tough play. :roll:

That doesn't help answer what the right answer is. But one thing does.
The rating itself, at least for online SOM, only has meaning once it has a price on the card. SO I don't care how they are normalized, as long as they are priced using a normalized schema.

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