Baseball card grading
Vintage centering and print defects, Topps rookie cards, chrome refractors. The deepest vintage market in the hobby and the one where condition moves price hardest.
Sports card grading
Every sport, every era, one price. MPE grades baseball, basketball, football, hockey and more on a published 1–10 scale, seals each card in a premium slab, and gives it a certification number anyone can verify for free.
Grading is independent condition assessment. Somebody who isn't you and isn't the buyer looks at the card, judges it on four criteria, assigns a number, and seals it in a case that can't be opened without visibly destroying it. The label carries the grade and a certification serial that resolves in a public database.
That last part is the whole point. A raw card described as "mint" is an opinion held by whoever wants your money. A graded card is a number attached to a permanent, checkable record. It's why graded cards sell faster, sell higher and sell to people who'd never buy a raw card from a stranger.
The four criteria are the same everywhere, but what tends to go wrong differs a lot by sport and era. Pick yours:
Vintage centering and print defects, Topps rookie cards, chrome refractors. The deepest vintage market in the hobby and the one where condition moves price hardest.
Prizm and Optic surfaces, print lines on chrome stock, rookie parallels. The modern market where a 9 and a 10 are worth wildly different money.
Rookie patch autographs, thick stock and sticker autos, National Treasures and Prizm. Cards with more ways to go wrong than any other sport.
O-Pee-Chee rough cuts and heavy off-centring, wax stains, Upper Deck Young Guns. The roughest vintage production in the hobby, and the scarcest high grades.
Holo scratches, edge whitening, 1st Edition stamps and centering on WOTC-era prints. Not a sport, but graded to the same scale and priced the same.
Black border whitening, foil curl and print lines, 1990s sheet cuts. Magic punishes a grading checklist in ways sports cards never do.
Soccer, racing, combat sports, wrestling and non-sport cards are all graded too, at the same $5 entry price. Just send them in.
Four criteria, applied to every card regardless of sport. The lowest one generally caps the overall grade, which is why a card can be flawless in three areas and still come back a 7.
| Criterion | What's being checked | What usually costs points |
|---|---|---|
| Centering | How evenly the image sits within the borders, front and back | Factory cutting — nothing you did, and nothing you can fix |
| Corners | All four, under magnification | Softness from handling, fraying, tiny dings from binder pages |
| Edges | All four sides, front and back | Chipping on dark borders, rough factory cuts, whitening |
| Surface | Gloss, print quality, scratches under angled light | Print lines, scratches, dimples, stains, loss of gloss |
Our grading scale page breaks down what each number from 1 to 10 actually means and where the boundaries sit.
The honest test: will the graded price beat the raw price by more than grading costs? That normally means one of these:
What's usually not worth it: modern base cards in average condition, damaged cards, and anything where the raw and graded prices are within a few dollars of each other. Work the numbers on our card grading cost page.
One flat price per card, whatever the sport, whatever the card turns out to be worth:
No membership. No declared-value upcharges — a $10 card and a $10,000 card cost the same to grade. The grade, the slab and live tracking are identical at every tier, so the higher tiers only buy speed. Custom labels are an optional $3 per card.
Sending from outside the US? See international submissions.
Independent condition assessment. A grader inspects the card on centering, corners, edges and surface, assigns a number from 1 to 10, and seals it in a tamper-evident case with a label carrying that grade and a unique certification number. The result is a card whose condition is described by a third party rather than by the seller, which is why graded cards sell more reliably than raw ones.
At MPE it starts at $7 per card for Premium service, with faster tiers at $9 and $15. Submissions of 100 cards or more go through our Bulk service, which starts at $5 per card on a 90-day turnaround and is quoted per submission. Across the wider industry the entry rate ranges from about $5 to about $80 per card. Shipping in both directions is a separate cost, charged per submission rather than per card.
Grade cards where the graded price beats the raw price by more than grading costs. In practice that means rookies of players who matter, low-numbered parallels, autographs and patches, vintage in genuinely strong condition, and anything with real personal value to you. Modern base cards in average condition usually aren't worth a fee unless the fee is very small.
Four things. Centering — how evenly the image sits inside the borders front and back. Corners, checked under magnification for softness or fraying. Edges, checked for chipping and rough cuts. Surface, checked for print lines, scratches, dimples, gloss loss and stains. The lowest of the four usually caps the overall grade.
It depends on the tier: Premium is 30 days, Express 10 days and Diamond 2 days, and Bulk submissions of 100+ cards are 90 days. The grade and the slab are identical at every tier, so the faster tiers buy speed and nothing else. You can follow a submission live from arrival to final grade.
Yes — baseball, basketball, football, hockey, soccer, racing, combat sports and more, alongside TCG cards such as Pokémon and Magic. There's no per-sport pricing difference.
Baseball → · Basketball → · Football → · Hockey → · Pokémon → · MTG →