SWSH07: Evolving Skies Medicham V 83/203: PSA 9 vs PSA 10
On SWSH07: Evolving Skies Medicham V 83/203, PSA 10 sells for 11.7x a PSA 9, a $64 delta, which is an unusually wide gem-mint premium. Based on the last tracked PSA 10 sale of $70.00 on Jan 17, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$70.00
Last sale $70.00 on
PSA 9
$6.00
Last sale $6.00 on
PSA 8
$8.52
Last sale $8.52 on
The Spread
The PSA 9 to PSA 10 spread on Medicham V 83/203 (SWSH07: Evolving Skies).
$64
Dollar gap, PSA 9 to PSA 10
11.7x
PSA 10 sells for 11.7x 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 holo carrying a $64 gap between PSA 9 and PSA 10, an 11.7x multiple on the PSA 9 price.
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