WhichGameUsed

Which Game Used

About this app

Discover the story behind the swatch.

Which Game Used is a research and authentication platform built for collectors of game-used memorabilia cards.

Explore sports cards containing real jersey material, patches, and memorabilia while researching the evidence behind each piece.

Whether you are collecting baseball, basketball, or football memorabilia, Which Game Used helps you understand what makes each card unique.

FEATURES

🔎 Research Memorabilia Cards

Browse a growing catalog of game-used cards and explore card details, player information, sets, memorabilia types, and available research.

🧵 Understand the Jersey Story

Go beyond the card checklist. Learn about the jersey material, patches, stitching, logos, and other details that connect memorabilia to its history.

✅ Verify Authenticated Assets

Use WGU verification codes and QR stickers to access public authentication records and confirm trusted memorabilia information.

📚 Learn Collector Research

Explore educational resources, guides, timelines, case studies, and research materials designed to help collectors better understand memorabilia authentication.

🏆 Join the Collector Community

Participate in discussions, contribute evidence, follow important discoveries, and build recognition through meaningful collector contributions.

WHY WHICH GAME USED?

Game-used memorabilia tells a story. The challenge is proving and preserving that story.

Which Game Used brings together card information, photographic references, research sources, and authentication records to create a clearer picture of the memorabilia inside each card.

Built for collectors who want more than a checklist — collectors who want to know the story behind the swatch.

SPORTS COVERED

⚾ Baseball
🏀 Basketball
🏈 Football

Start exploring the world of game-used memorabilia today.