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Pokémon · Basic
Illustrated by Kimiya Masago
Mewtwo 20/165 Expedition Base Set PSA Population
Pokémon · Basic
Illustrated by Kimiya Masago
Mewtwo #20 from Expedition Base Set currently has 2,008 PSA graded copies, including 62 PSA 10s, for a 3.1% PSA gem rate.
PSA, CGC, and BGS data as of Oct 27, 2026.
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Graded population
| Grade | PSA | CGC | BGS |
|---|---|---|---|
| Total Graded | 2,008 | 365+2 | 209+10 |
| Pristine / Black Label % | — | 1.4%-0.01% | 0% |
| Gem Rate | 3.1%-0.04% | 7.4%+0.2% | 8.1%-0.9% |
| Perfect / Black Label | — | 0 | 0 |
| Pristine | — | 5 | — |
| 10 | 62 | 22+1 | 0 |
| 9.5 | — | 12 | 17-1 |
| 9 | 387 | 56 | 71+3 |
| 8.5 | 7 | 56 | 51 |
| 8 | 487+6 | 45 | 30+3 |
| 7.5 | 0 | 40 | 15+2 |
| 7 | 337+4 | 26 | 12+2 |
PSA total graded is the grader's reported population (2,008). The grade rows add up to 2,003.
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| 6.5 | 1 | 22 | 7+1 |
| 6 | 315+2 | 22 | 0 |
| 5.5 | 0 | 13 | 0 |
| 5 | 174+4 | 12+1 | 1 |
| 4.5 | 0 | 12 | 2 |
| 4 | 80+2 | 3 | 0 |
| 3.5 | 0 | 2 | 1 |
| 3 | 49 | 2 | 0 |
| 2.5 | 0 | 3 | 1 |
| 2 | 31+2 | 2 | 1 |
| 1.5 | 0 | 2 | 0 |
| 1 | 73 | 0 | 0 |
| 0 | — | 8 | — |
Market value
No market estimate yet.
