MidpointCard Centering Grading Portfolio App

Is Bert Marshall #188 worth grading?

Hockey · Hockey Cards 1970 O-Pee-Chee · full price guide →

Worth grading — even a PSA 9 beats raw

A PSA 10 Bert Marshall #188 sells for $290 against $2.03 raw: a $288 spread, 143× the ungraded price. Even a PSA 9 ($49.49) 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)
$2.03
PSA 10
$290
PSA 9
$49.49
Gem premium
143×
As of
Sep 2, 2026

Break-even by outcome and fee

Bert Marshall #188: 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 — PSA 10$290+$263+$238+$138
PSA 9$49.49+$22.46−$2.54−$103
PSA 8$20.65−$6.38−$31.38−$131

Net = sale price − $2.03 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?

Bert Marshall #188: expected value of submitting by gem probability
Chance it gemsExpected saleExpected net (standard fee)
25%$110+$57.69
50%$170+$118
75%$230+$178

Break-even gem rate at the standard fee: about 1%. Centering is the usual reason a clean copy misses — measure it before you decide.

Which grader pays the most — and what a 10 takes

All centering standards
Bert Marshall #188: top-grade value by grading company with centering tolerance
Grader10 sells forvs bestFront centering for a 10Back
BGS 10$378best55/4570/30
PSA 10$290−$87.6155/4575/25
CGC 10$174−$20455/4575/25
SGC 10$174−$20455/4575/25

Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.

Bert Marshall #188 graded prices by company and grade
GradePSACGCBGSSGCGraded
10$290$174$378$174
9.5$90.48
9$49.49
8$20.65
7$9.86

Swipe the table for the other grading companies →

Run your own numbers

Should I pay this?

Enter the seller’s asking price to see your net outcome per grade.

Other 1970 O-Pee-Chee cards worth checking

Full set checklist

Grading Bert Marshall #188 — FAQ

Is Bert Marshall #188 worth grading?

A PSA 10 Bert Marshall #188 sells for $290 against $2.03 raw: a $288 spread, 143× the ungraded price. Even a PSA 9 ($49.49) 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.

How much is a PSA 10 Bert Marshall #188 worth compared with raw?

A PSA 10 Bert Marshall #188 (Hockey Cards 1970 O-Pee-Chee) sells for about $290 versus $2.03 for a raw near-mint copy — a 143× premium as of Sep 2, 2026.

Which grading company is best for Bert Marshall #188?

By resale value, BGS 10 leads at $378, ahead of PSA 10 at $290. Fees and turnaround differ, so the best-paying label is not always the best net.

What centering does Bert Marshall #188 need for a BGS 10?

BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.

What gem rate makes grading Bert Marshall #188 break even?

At a standard ~$50 fee, submitting Bert Marshall #188 breaks even when it gems about 1% of the time (a miss assumed to sell at the PSA 9 price of $49.49).

Best on iPhone & Android

Check your hockey card in the Midpoint app

Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.

Download on the App StoreGet it on Google Play

Or try it on the web →

Best on iPhone & Android

The full Midpoint experience is in the app

Scan with your camera, get AI grades with corner and edge close-ups, issue Grade Certificates, set price alerts, track your portfolio and talk to other collectors — everything here, plus the parts a browser can't do. Free to start.

Download on the App StoreGet it on Google Play