East Coast Collectibles Convention takes place at MOHEGAN SUN-UNCAS BALLROOM - SKY CONVENTION CENTER in Uncasville, Connecticut on Sunday, June 21, 2026. Doors open at 10:00 AM and the event runs until 4:00 PM. This multi-day convention features sports cards, panels, cosplay, and vendor booths.
This convention in Uncasville, Connecticut brings together fans, vendors, and creators. Expect vendor booths, panels, cosplay, and opportunities to meet special guests. Featured categories include sports cards. Doors open on Sunday, June 21 at 10:00 AM. No registration is required — just show up. The event is held at MOHEGAN SUN-UNCAS BALLROOM - SKY CONVENTION CENTER. We recommend arriving 15–20 minutes early, especially if this is your first time visiting.
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