Celebrations: Classic Collection Donphan 107: PSA 9 vs PSA 10
On Celebrations: Classic Collection Donphan 107, PSA 10 sells for 3.4x a PSA 9, a $42 delta, which is a wide gem-mint premium. Based on the most recent PSA 10 sale of $55.00 on May 28, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$60.28
Last sale $55.00 on
PSA 9
$17.94
Last sale $15.00 on
PSA 8
$10.00
Last sale $7.50 on
The Spread
The PSA 9 to PSA 10 spread on Donphan 107 (Celebrations: Classic Collection).
$42
Dollar gap, PSA 9 to PSA 10
3.4x
PSA 10 sells for 3.4x 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 Celebrations: Classic Collection picture: a modern-era card carrying a $42 gap between PSA 9 and PSA 10, a 3.4x multiple on the PSA 9 price.
More Donphan Comparisons
Other Celebrations: Classic Collection 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.