SWSH07: Evolving Skies Gordie #223: PSA 9 vs PSA 10
SWSH07: Evolving Skies Gordie #223 shows a wide gem-mint premium between PSA 9 and PSA 10: a $29 dollar gap, with the gem mint multiplier at 3.1x. Based on a recent PSA 10 sale of $42.00 on May 28, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$42.00
Last sale $42.00 on
PSA 9
$13.50
Last sale $13.50 on
PSA 8
$8.52
Last sale $8.00 on
The Spread
The PSA 9 to PSA 10 spread on Gordie #223 SWSH07: Evolving Skies.
$29
Dollar gap, PSA 9 to PSA 10
3.1x
PSA 10 sells for 3.1x a PSA 9
Three-Outcome EV Calculator
15%
70%
15%
Defaults are conservative starting points. Adjust based on the specific slab. A borderline 9 with strong centering plays differently than a 9 with edge wear.
PSA 10 outcome (sale price minus resub minus acquisition)
$0
PSA 9 outcome (regrade, no upgrade)
$0
PSA 8 outcome (downgrade, slower sell, tied capital)
$0
Expected Value
$0
Math favors holding the 9
Where this card lands in the broader SWSH07: Evolving Skies picture: a non-holo with a $29 gap between PSA 9 and PSA 10. The PSA 9 to PSA 10 jump on WOTC-era cards reflects population scarcity at the top grade, not raw print run.
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