SWSH07: Evolving Skies Medicham V 186/203: PSA 9 vs PSA 10
The PSA 10 to PSA 9 spread on SWSH07: Evolving Skies Medicham V 186/203 is a wide gem-mint premium: $73, with PSA 10 copies trading at 3.7x a PSA 9. Based on the most recent PSA 10 sale of $103.50 on May 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
$100.31
Last sale $103.50 on
PSA 9
$27.33
Last sale $32.00 on
PSA 8
$9.50
Last sale $9.50 on
The Spread
The PSA 9 to PSA 10 spread on Medicham V 186/203 (SWSH07: Evolving Skies).
$73
Dollar gap, PSA 9 to PSA 10
3.7x
PSA 10 sells for 3.7x 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
SWSH07: Evolving Skies 186/203 Medicham V is a modern-era release from 2021. The gap between its PSA 9 and PSA 10 prices is $73.
More Medicham Comparisons
Other SWSH07: Evolving Skies Heavy Hitters
Track every grade tier. Spot every gap.
Real PSA prices across every grade tier. Free during beta.
Get Free Beta AccessFounding Member Cohort · Limited to the First 100 Members.