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Is Bill Mazeroski worth grading?

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Worth grading — even a PSA 9 beats raw

A Grade 9.5 Bill Mazeroski sells for $121 against $3.76 raw: a $117 spread, 32× the ungraded price. Even a PSA 9 ($110) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

Raw (NM)
$3.76
Grade 9.5
$121
PSA 9
$110
Gem premium
32×
As of
Sep 3, 2026

Break-even by outcome and fee

Bill Mazeroski: net result of grading versus selling raw, by outcome and fee tier
If it comes back…Sells forEconomy / bulk (~$25.00)Standard (~$50.00)Express (~$150)
Gem — Grade 9.5$121+$92.24+$67.24−$32.76
PSA 9$110+$80.94+$55.94−$44.06
PSA 8$84.00+$55.24+$30.24−$69.76

Net = sale price − $3.76 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.

Expected value — how often does it need to gem?

Bill Mazeroski: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$113+$58.77
50%$115+$61.59
75%$118+$64.41

Even a miss (a 9) beats selling raw after the standard fee — the gem rate only decides how much you win by.

Bill Mazeroski graded prices by company and grade
GradeGraded
9.5$121
9$110
8$84.00
7$31.00

Run your own numbers

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Grading Bill Mazeroski — FAQ

Is Bill Mazeroski worth grading?

A Grade 9.5 Bill Mazeroski sells for $121 against $3.76 raw: a $117 spread, 32× the ungraded price. Even a PSA 9 ($110) clears the raw price after an economy-tier ~$25 fee, so a near-miss still comes out ahead. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.

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