Common Theory Card Show

Common Theory Card Show San Diego – SD Card Club
Join SD Card Club on Sunday, September 20, 2026, for the Common Theory Card Show San Diego, a free all-ages trading card event featuring collectors, vendors, traders, and fans from across the San Diego community. Hosted at Common Theory Public House, this afternoon event is a great opportunity to connect with other collectors, discover new cards, and enjoy a fun day centered around the hobby.

The event takes place from 12 PM to 4 PM at 4805 Convoy St in San Diego. Admission is completely free and open to all ages, making it an easy event for families, collectors, players, and anyone interested in trading cards to attend.

With 25+ vendors expected, guests can browse a wide variety of collectibles and find everything from Pokémon and One Piece cards to sports cards and video games. Whether you’re searching for a specific card, building a new collection, looking for cards to trade, or simply want to see what local vendors have available, there will be plenty to check out.

Pokémon, One Piece, Sports Cards & Video Games
The Common Theory event features a variety of popular collecting categories. Pokémon fans can search for new additions to their collections, while One Piece collectors can connect with vendors and other players. Sports card collectors can browse cards from different sports and eras, and video game collectors can also find something to add to their collections.

Bring your trade binder and come ready to meet other collectors. Trading is one of the best parts of the hobby, and SD Card Club events are designed to create a welcoming environment where people can buy, sell, trade, and connect.

Free Giveaways & Family-Friendly Fun
In addition to more than 25 vendors, attendees can enjoy free giveaways throughout the event. Common Theory Public House will also have themed food and drinks available during the event, giving guests another reason to hang out and make an afternoon of it.

Whether you’re an experienced collector or completely new to the hobby, this San Diego card show is a chance to meet local collectors, discover new cards, support small businesses, and spend time with the SD Card Club community.

Event Details
Date: Sunday, September 20, 2026
Time: 12 PM – 4 PM
Location: Common Theory Public House
Address: 4805 Convoy St, San Diego, CA 92111
Admission: Free
Ages: All Ages
Vendors: 25+
Featured Collectibles: Pokémon, One Piece, Sports Cards & Video Games
Hosted By: SD Card Club

Come out, bring your friends and family, grab your trade binder, and spend the afternoon buying, selling, trading, and collecting. Whether you’re looking for your next big pickup or just want to hang with the local hobby community, Common Theory Card Show San Diego is a great Sunday destination for collectors.