KC Collector's Convention takes place at Johnson County Fairgrounds in Gardner, Kansas on Saturday, April 4, 2026. Doors open at 9:00 AM and the event runs until 6:00 PM. This multi-day convention features sports cards, panels, cosplay, and vendor booths.
This convention in Gardner, Kansas 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 Saturday, April 4 at 9:00 AM. No registration is required — just show up. The event is held at Johnson County Fairgrounds. We recommend arriving 15–20 minutes early, especially if this is your first time visiting.
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