How to find real sports card prices

1. Recorded sales, not listings. Sports card prices should come from completed transactions: eBay solds and auction house results, with dates. Averages of active listings run high, because the overpriced listings are the ones that sit unsold. If a site cannot tell you which sales are behind a number, treat the number as an opinion.

2. Grade-by-grade separation. A raw card, a PSA 8, and a PSA 10 of the same card are different markets. Parallels and base cards are different markets too. A useful price is for the exact card and grade you hold, not a blend.

3. Recency you can see. One hot week moves a rookie card 30%. A price without a date behind it might be one stale comp from before the run. Look for the 30-day trend and the date of the last recorded sale.

4. Enough sales to mean something. Low-volume cards are where bad prices live: one unusual auction can move a thin average by half. The honest behavior when data is thin is to say so, not to publish a number anyway.

Sports card prices here come from recorded sold sales on eBay and the major auction houses: actual completed transactions, never asking prices or active listings. Prices are kept per grade tier, every price shows its recorded sale count and 30-day move, and cards without enough recorded sales are left out rather than ranked on thin data. The full pipeline is on the methodology page.

Baseball, basketball, football, hockey, and soccer are all tracked, and the catalog grows from real market activity: new sales flow in daily.