Markets & Tiers
PokeTrace aggregates pricing from multiple markets and sources. Understanding the market structure, grading companies, and tier formats is essential for correctly interpreting price data and building accurate pricing displays.
Markets
⚠️ Cards are separate per market — each card belongs to US OR EU, never both.
Sources: ebay (graded + raw from sold listings) + tcgplayer (raw conditions only)
Examples: prices.ebay.PSA_10, prices.ebay.NEAR_MINT, prices.tcgplayer.NEAR_MINT
Currency: USD. Includes variant data (Holofoil, Normal, etc.)
If approxSaleCount is true, that source uses an approximate sale count because sold-listing totals can change after the fact due to revoked, removed, or reclassified listings. Today this applies to ebay. Stable marketplace sources return approxSaleCount: false.
Sources:
cardmarket— Price Trend (verified sales average)Single avg per card. No condition/grade/country breakdown. Most reliable baseline.
cardmarket_unsold— Active listings (asking prices)Has condition, graded tiers, country and language breakdowns, and rolling medians (median3d/7d/30d). The language map is available at tier level and within each country. Counts marked observed_offers refer to observed asking-price offers, not completed sales.
Examples: prices.cardmarket.AGGREGATED.avg, prices.cardmarket_unsold.PSA_10.country.DE.language.ALL
Currency: EUR. Finish labels include Normal and Holofoil. Selected cards also have an explicit First Edition variant based on confirmed asking offers.
Rolling Medians
Price data includes rolling medians calculated from individual listings (anomalies excluded):
Medians are more robust against outliers than averages. Anomalous prices (<10% or >10x of 3-day median) are automatically excluded.
EU Country Breakdown
EU cards include per-country pricing based on seller origin:
Card Variants and Editions
US cards include variants from TCGPlayer SKUs. EU finish labels do not establish edition: Normal does not mean Unlimited. Selected EU cards, starting with Base Set Blastoise, have an explicit First Edition variant containing confirmed asking offers. General EU prices and older histories may still combine editions. Product-wide Price Trend is not an edition-specific price.
Grade format (US): COMPANY_GRADE (e.g., PSA_10, BGS_9_5). Half grades use underscore (9.5 → 9_5).