SWSH11: Lost Origin Delphox V #27: PSA 9 vs PSA 10

The PSA 10 to PSA 9 spread on SWSH11: Lost Origin Delphox V #27 is one of the widest gaps in vintage WOTC: $42, with PSA 10 copies trading at 5.9x a PSA 9. Based on a recent PSA 10 sale of $50.00 on May 10, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

PSA 10

$50.00

Last sale $50.00 on May 10, 2026 UTC

PSA 9

$8.50

Last sale $8.50 on May 28, 2026 UTC

PSA 8

$19.99

Last sale $5.00 on May 22, 2023 UTC

The Spread

The PSA 9 to PSA 10 spread on Delphox V #27 SWSH11: Lost Origin.

$42

Dollar gap, PSA 9 to PSA 10

5.9x

PSA 10 sells for 5.9x a PSA 9

Three-Outcome EV Calculator

PSA 9 acquisition cost ($)

PSA resub cost ($)

Probability of each outcome (must total 100%)

PSA 10 (upgrade) 15%

PSA 9 (regrade) 70%

PSA 8 (downgrade) 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

Math favors holding the 9

Where this card lands in the broader SWSH11: Lost Origin picture: a holo with a $42 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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