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SWSH07: Evolving Skies Suicune V 173/203: PSA 9 vs PSA 10

On SWSH07: Evolving Skies Suicune V 173/203, PSA 10 sells for 6.6x a PSA 9, a $73 delta, which is an unusually wide gem-mint premium. Based on the most recent PSA 10 sale of $99.99 on May 22, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

SWSH07: Evolving Skies Suicune V 173/203
PSA 10
$85.99
Last sale $99.99 on
PSA 9
$13.00
Last sale $19.99 on
PSA 8
$24.99
Last sale $24.99 on

The Spread

The PSA 9 to PSA 10 spread on Suicune V 173/203 (SWSH07: Evolving Skies).

$73
Dollar gap, PSA 9 to PSA 10
6.6x
PSA 10 sells for 6.6x 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 modern-era card carrying a $73 gap between PSA 9 and PSA 10, a 6.6x multiple on the PSA 9 price.

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