Base Set 2 Blastoise 2/130: PSA 9 vs PSA 10
On Base Set 2 Blastoise 2/130, PSA 10 sells for 3.4x a PSA 9, a $1,125 delta, which is a wide gem-mint premium. Based on the last tracked PSA 10 sale of $7,500.00 on Sep 27, 2025, the crack-and-resub math favors the resub: expected value is positive even at a conservative 15% upgrade probability.
PSA 10
$1,587.56
Last sale $7,500.00 on
PSA 9
$463.00
Last sale $450.00 on
PSA 8
$262.14
Last sale $400.00 on
The Spread
The PSA 9 to PSA 10 spread on Blastoise 2/130 (Base Set 2).
$1,125
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
Base Set 2 2/130 Blastoise Holo is a WOTC-era release from 2000. The gap between its PSA 9 and PSA 10 prices is $1,125.
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