TCG Price Arbitrage - Cardmarket vs TCGplayer โ€” status

90.0% success over 10 public runs in the last 30 days, 1 failed.

Canary results unavailable in this build.

Lifetime users: 1 ยท lifetime runs: 41

EU vs US card prices in one run: Cardmarket trend (EUR) against TCGplayer market (USD), matched card-by-card via collector number, converted at the daily ECB rate. Spread percent, cheaper side and both product links per row. Aggregate prices only - no listings, no sellers.

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What a failure means here

A run that cannot deliver fails loudly instead of returning empty rows - that is a design rule, so the numbers above are the honest record, not a marketing surface. When a site redesign breaks an actor, the fix usually ships the same day; the incident becomes a permanent regression test.

Generated 2026-09-06 12:27 UTC.