SWSH09: Brilliant Stars Zamazenta V 105/172: PSA 9 vs PSA 10
The PSA 10 to PSA 9 spread on SWSH09: Brilliant Stars Zamazenta V 105/172 is a meaningful PSA 10 premium: $18, with PSA 10 copies trading at 2.3x a PSA 9. Based on the most recent PSA 10 sale of $30.99 on May 14, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$30.99
Last sale $30.99 on
PSA 9
$13.25
Last sale $14.00 on
PSA 8
$20.18
Last sale $20.18 on
The Spread
The PSA 9 to PSA 10 spread on Zamazenta V 105/172 (SWSH09: Brilliant Stars).
$18
Dollar gap, PSA 9 to PSA 10
2.3x
PSA 10 sells for 2.3x 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 SWSH09: Brilliant Stars picture: a modern-era holo carrying an $18 gap between PSA 9 and PSA 10, a 2.3x multiple on the PSA 9 price.
More Zamazenta Comparisons
Other SWSH09: Brilliant Stars 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.