Team Rocket Dark Gyarados #8: PSA 9 vs PSA 10
On Team Rocket Dark Gyarados #8, the PSA 10 premium is one of the widest gaps in vintage WOTC: PSA 10 sells for 11.9x a PSA 9, a $1,832 delta. Based on the most recent PSA 10 sale of $1,999.99 on Apr 14, 2026, the crack-and-resub math favors the resub: expected value is positive even at a conservative 15% upgrade probability.
PSA 10
$1,999.99
Last sale $1,999.99 on
PSA 9
$167.90
Last sale $167.90 on
PSA 8
$77.32
Last sale $66.00 on
The Spread
The PSA 9 to PSA 10 spread on Dark Gyarados #8 Team Rocket.
$1,832
Dollar gap, PSA 9 to PSA 10
11.9x
PSA 10 sells for 11.9x 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
Team Rocket #8 Dark Gyarados Holo released in 2000 sits in the vintage WOTC tier where gem-mint premiums above $1,832 are common. PSA 10 populations shrink faster than supply on cards of this era, which is why the upgrade arbitrage stays alive.
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