Guides: buying, selling and valuing sports cards
Last updated: 26 Sept 2026
Soccer, NBA, NFL or Formula 1: here is the knowledge collectors and sellers across Germany, Austria and all of Europe need – clear, current and without sales pressure.
The three big guides
- 01Sell sports cardsSoccer cards, NBA rookies, graded slabs or your whole collection: on CARDLEAGUE you sell sports cards to collectors and verified dealers across Europe – no shop counter, no haggling stress, with buyer protection that protects you too.Read more
- 02Buy sports cardsRookie cards, parallels, graded slabs or the missing card for your set: on CARDLEAGUE you buy from collectors and verified dealers from Germany and all of Europe – with real market prices and buyer protection on every order.Read more
- 03What is my sports card worth?The honest answer: as much as someone last paid for exactly this card in exactly this condition. Here you learn which factors determine the value and how to find it without guessing.Read more
Knowledge in brief
- Grading explained: PSA, BGS, SGC & CGCPSA, BGS, SGC and CGC: what the grades mean, when grading pays off and how to submit.Read more
- Rookie cards: the first card countsWhy a player's first card is so sought after – and how to recognise real rookie cards.Read more
- Parallels and serial numbers explainedRefractor, Prizm, Gold /50, Superfractor 1/1: how parallels and serial numbers determine value.Read more
- Topps Chrome vs. Panini PrizmThe two most important product lines compared – for soccer, NBA and more.Read more
- Shipping sports cards safelySleeve, toploader, padded envelope: how cards arrive intact – and what is mandatory from which value.Read more
- Spotting fake sports cardsReprints, fake slabs, trimmed cards: how to spot fakes and how to protect yourself.Read more
- Selling sports cards and taxesPrivate or business? When sales are tax-free, what DAC7 means and when you need to register a business.Read more
Ready for your first card?
Creating an account is free, so is listing. Fees only apply once a card has sold.