PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $499.96 |
| PSA 7 | $538.45 |
| PSA 8 | $845 |
| PSA 9 | $1000.89 |
| PSA 10 | $4250 |
| BGS 10 | $5525 |
| CGC 10 | $609.73 |
| SGC 10 | $2550 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-best-of-game/pokemon-best-of-game-rocket-s-mewtwo-winner-8