SWSH07: Evolving Skies Gyarados V 28/203: PSA 9 vs PSA 10
SWSH07: Evolving Skies Gyarados V 28/203 shows an unusually wide gem-mint premium between PSA 9 and PSA 10: a $106 dollar gap, with the gem mint multiplier at 6x. Based on the last tracked PSA 10 sale of $75.00 on Apr 30, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$127.50
Last sale $75.00 on
PSA 9
$21.24
Last sale $25.99 on
PSA 8
$10.50
Last sale $10.50 on
The Spread
The PSA 9 to PSA 10 spread on Gyarados V 28/203 (SWSH07: Evolving Skies).
$106
Dollar gap, PSA 9 to PSA 10
6x
PSA 10 sells for 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
SWSH07: Evolving Skies 28/203 Gyarados V Holo is a modern-era release from 2021. The gap between its PSA 9 and PSA 10 prices is $106.
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