GMA Centering Standards: Tolerances and How to Measure

GMA grading is known for being more lenient than PSA or Beckett, but strong, even centering is still required for a GMA 10. It's essential to confirm GMA's current published centering standards and measure your card's centering before submitting.

Understanding GMA Centering Standards

GMA grades trading cards on a 1-10 scale, with centering as a key subgrade. Although GMA is generally more forgiving than PSA or Beckett, especially on centering, their top grade (GMA 10) still demands visually strong centering both front and back. GMA does not publish precise centering ratios for each grade, so always check their latest guidelines before submitting.

Front and Back Centering Tolerances

GMA 10: Requires strong, even centering. Cards with obvious centering flaws are unlikely to receive a 10.
Lower Grades: As centering worsens, grades decrease, but GMA may be more lenient than other graders. Exact tolerances are not publicly specified.
Front vs. Back: Centering is evaluated on both sides. The front is most important, but poor back centering can impact the overall grade.

Because GMA does not publish specific ratios, always confirm their current standards and use an accurate tool to measure your card's centering.

How to Measure Your Card's Centering

To estimate how your card will perform on centering, measure the exact left/right and top/bottom percentages. The Midpoint app (iOS and Android) detects borders and calculates precise front and back centering from a single photo. This helps you understand if your card's centering is likely strong enough for a GMA 10 or other grade before you submit.

Other Grading Factors to Consider

Centering is just one subgrade. GMA also considers corners, edges, and surface quality. Even with perfect centering, flaws in these areas can lower your card's grade. Inspect your card thoroughly and compare it to GMA's published standards for all grading criteria.

Measure your card's exact front and back centering in Midpoint - free to start - so you know its grade before you pay to submit.

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FAQ

What centering is required for a GMA 10?

A GMA 10 requires strong, even centering. GMA does not publish exact ratios, so check their latest standards and measure your card's centering before submitting.

Does GMA have specific centering ratios for each grade?

GMA does not publicly specify exact centering ratios for each grade. Always confirm their current standards before submitting your card.

How can I measure my card's centering for GMA grading?

You can measure your card's exact centering percentages front and back using the Midpoint app, which analyzes a single photo.

Is centering the only factor for a GMA grade?

No. Corners, edges, and surface condition are also critical. Strong centering alone will not guarantee a high grade if other flaws are present.

Is GMA more lenient on centering than PSA or Beckett?

Yes, GMA is generally considered more lenient, but strong centering is still needed for their top grades. Always check their current standards.