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Is Mike Murphy #31 worth grading?

Hockey · Hockey Cards 1979 O-Pee-Chee · full price guide →

Worth grading — even a PSA 9 beats raw

A Grade 9.5 Mike Murphy #31 sells for $74.00 against $1.39 raw: a $72.61 spread, 53× the ungraded price. Even a PSA 9 ($67.00) 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)
$1.39
Grade 9.5
$74.00
PSA 9
$67.00
Gem premium
53×
As of
Sep 3, 2026

Break-even by outcome and fee

Mike Murphy #31: 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$74.00+$47.61+$22.61−$77.39
PSA 9$67.00+$40.61+$15.61−$84.39
PSA 8$59.00+$32.61+$7.61−$92.39

Net = sale price − $1.39 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?

Mike Murphy #31: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$68.75+$17.36
50%$70.50+$19.11
75%$72.25+$20.86

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

Mike Murphy #31 graded prices by company and grade
GradeGraded
9.5$74.00
9$67.00
8$59.00
7$26.89

Run your own numbers

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Grading Mike Murphy #31 — FAQ

Is Mike Murphy #31 worth grading?

A Grade 9.5 Mike Murphy #31 sells for $74.00 against $1.39 raw: a $72.61 spread, 53× the ungraded price. Even a PSA 9 ($67.00) 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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