70/30 centering

A 70/30 card is clearly off-center. On the front it caps the card around a 7 or 8, though on the back it still allows a PSA 10.

Drawn to scale. The left border takes 70% of the combined left and right borders.

How 70/30 grades

The best grade each company allows when 70/30 is the card's worse axis.

Company	On the front	On the back
PSA	PSA 8 (inside the range)	PSA 10
BGS subgrade	7	9
CGC	CGC 7	CGC Gem Mint 10

BGS front subgrades here assume the other axis is well centered, since BGS judges both axes together. CGC doesn't publish back limits below a 9.

Measure your card

70/30 in millimeters

On a card whose left and right borders add up to 6 mm, 70/30 centering means a 4.2 mm border on one side and 1.8 mm on the other, a difference of 2.4 mm. That's easy to see at arm's length.

Questions

Can a 70/30 card get a PSA 10?

Not with a 70/30 front. PSA's Gem Mint 10 needs about 55/45 or better on the front. On the back, 70/30 still allows a 10, since the back limit is 75/25.

Is 70/30 good centering?

70/30 is clearly off-center. On the front it caps the card around a 7 or 8, though on the back it still allows a PSA 10.

See every ratio on the centering chart, or read the full centering requirements.