What's your memorabilia
really worth?
Signed, game-worn or match-used — sports memorabilia value rests on authentication and provenance above all. Assay blends auction results with authenticity signals so you can trust the number and the item.
How to value sports memorabilia
With memorabilia, authentication and provenance come first — a credible chain of custody and recognised certification can be the difference between a fortune and a fake.
Significance (the player, the moment, game-worn vs replica) and condition then drive the premium, anchored to realised auction prices for comparable items.
Assay surfaces authenticity and provenance signals alongside the valuation, so you're never relying on a seller's word alone in a market where fraud runs into the hundreds of millions.
Authentication
Recognised certification and a clean chain of custody underpin everything.
Game-worn vs replica
Match-used items carry a steep premium over retail or replica.
The moment & player
Iconic players and historic moments drive the most demand.
Condition & provenance
Documented history and condition fine-tune the final number.
Record sports memorabilia sales
| Item | Price | Why |
|---|---|---|
| 'Hand of God' match shirt | $9.3M | 2022 — a landmark memorabilia sale |
| Championship game-worn jersey | $1M+ | Significance and authentication led |
| Signed historic equipment | $100k+ | Provenance is the value |
Public auction results, shown to illustrate the value drivers Assay blends into every valuation. Not investment advice.
The trusted number for sports memorabilia.
Instant blended value
Live sold comps, active asks and price guides weighted into one fair value with a confidence range — in seconds.
Sell safely, for less
One-tap, escrow-protected listings at a fraction of ~13% marketplace fees and 20–26% auction premiums.
One vault, everywhere
Track your sports memorabilia beside every other market in one portfolio, synced across Android, iOS and web.
Sports Memorabilia valuation FAQ
Primarily on authentication and provenance, then significance and condition, anchored to comparable auction sales. Assay blends these and shows authenticity signals with every estimate.
Buy items with credible certification and a clear chain of custody. Assay surfaces authenticity and seller signals, and holds funds in escrow until the item is verified and delivered.
A game-worn 'Hand of God' shirt sold for about $9.3M in 2022 — its value resting on the moment it represents and its documented provenance.
Yes — one-tap listings, escrow-held funds, and verified provenance protect both sides through the sale.
Free valuations are included daily, with unlimited valuations and selling tools on Pro.
Verified data sources
The authoritative pricing references Assay blends and links to for sports memorabilia — so every valuation is traceable.
Independent third-party sources, linked for verification. Trademarks belong to their respective owners; Assay is not affiliated unless stated.
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Know the real worth of what you hold
From graded cards and coins to watches, art and antiques — one valuation standard across every collectible market.
Know what your sports memorabilia is
really worth.
Free to start — on Android, iOS and the web. Value, track and sell in one secure vault.