DSG PRESENTS: Sonoma County Card & Collectibles Show

About this show

Join us for the Sonoma County Card & Collectibles Show, presented by Diamond Service Grading, where collectors, dealers, and enthusiasts converge for an unforgettable weekend of sports card trading! Taking place from August 15-16, 2026, at the DoubleTree by Hilton in Rohnert Park, this two-day event features thousands of cards, exclusive autograph signings with sports legends, and the unique opportunity for on-site grading, making it a must-visit for anyone in the hobby.

The Sonoma County Card & Collectibles Show is a two-day event bringing together collectors and dealers from across Northern California. It features autograph signings from notable sports legends and on-site grading services.

Good to know

• Event Dates

  August 15-16, 2026

• VIP Kick-Off

  August 14, 6-10 PM - Get early access before the general public.

• Admission

  $10 for single day or $100 for VIP weekend pass.

• Featured Signers

  Meet Negro League legends and UFC heavyweights for autograph signings.

• On-Site Grading

  Drop off your cards for grading with Diamond Service Grading.

• Parking

  Ample free parking available.

• Food

  Food options on-site.

• Giveaways

  Exclusive giveaways for attendees.

• Contact

  For more information, visit our website or contact Diamond Service Grading.

• Autograph Signings

  Featured signers include Dennis 'Bose' Biddle, W. James Cobbin, Don 'The Rook' Porter, Cain Velasquez, and Todd Duffee.

• Food Options

  Food concessions available at the venue.

• Contact Email

  support@dsggrading.com

• Hotel Information

  Discounted hotel rooms available at DoubleTree by Hilton with group code CDT91F.

Location