Base Set 2 Squirtle 93/130: PSA 9 vs PSA 10
The PSA 10 to PSA 9 spread on Base Set 2 Squirtle 93/130 is an unusually wide gem-mint premium: $227, with PSA 10 copies trading at 5.8x a PSA 9. Based on the most recent PSA 10 sale of $271.70 on May 18, 2026, the crack-and-resub math favors the resub: expected value is positive even at a conservative 15% upgrade probability.
PSA 10
$273.88
Last sale $271.70 on
PSA 9
$46.91
Last sale $33.96 on
PSA 8
$27.56
Last sale $33.30 on
The Spread
The PSA 9 to PSA 10 spread on Squirtle 93/130 (Base Set 2).
$227
Dollar gap, PSA 9 to PSA 10
5.8x
PSA 10 sells for 5.8x 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 Base Set 2 picture: a WOTC-era card carrying a $227 gap between PSA 9 and PSA 10, a 5.8x multiple on the PSA 9 price.
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