EN ↔ JP comparison · which version to grade

Grade the Japanese Blastoise ex, or the English one?

Which to grade: Both are PSA 10 chases at a ~30% gem rate. The Japanese 202 SAR offers the bigger multiple (~9× on a ¥2,800 raw); the English 200 SIR is a steadier ~3.3×. Either way the call rides on hitting the 10 — a PSA 9 barely clears costs.

Side-by-side of the same card in both languages. Graded figures are recent sold medians (eBay); raw is the TCGplayer / market reference. Gem rates are labeled estimates. As of 2026-06-28. example/mock data

English Chase PSA 10
Blastoise ex (151) — English (Pokémon 151 #200/165)
Blastoise ex (151) — English (Pokémon 151 #200/165)

Pokémon 151 · #200/165 · Special illustration rare

Raw market
$24
PSA 10 sold
$78 · 10 sold ↑
Gem rate est.
≈ 30%
Break-even
$44
PSA 10 premium
3.3× raw
Expected value
$4.2

Positive EV ($4.2) but it rides on a 30% top-grade rate — a chase, not a lock.

No standalone page yet — English figures are reference/mock for this comparison.

Source: recent eBay sold · raw market · as of 2026-06-28 · example/mock

Run your own numbers — Japanese side

The cited answer above is static; this is the interactive tool for the Japanese print. The English side has its own calculator on its card page.

Run your own numbers

Estimates are editable — grading cost is never hardcoded into the verdict. example/mock data

Grade-probability distribution

3 of 10 reach 10
  • 10 30% · ≈3/10
  • 9 50% · ≈5/10
  • ≤8 20% · ≈2/10
Expected value ¥260
Break-even graded value ¥10,800
Verdict Chase PSA 10

Positive EV (¥260) but it rides on a 30% top-grade rate — a chase, not a lock.

Batch & timing

Total invested¥10,800
Total expected value¥260
Aggregate ROI2%
Top-grade sales to recover1
Est. time to sell-through≈ 3 days

Sell-through time is a rough estimate from recent sold velocity — not a promise.

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