Contact
Corrections, variants and set submissions
This is a research project, so the most valuable message you can send is one that proves something here is wrong.
research@nonsportchecklist.com
Include the set name, the card number, and a photo or scan where possible. Front and back is ideal for variant claims.
Reporting a checklist error
Tell us which card is wrong and what the correct information is. If the disagreement is with another published checklist, say which one — that context helps us note the conflict rather than silently overwrite it.
Submitting a new set
Full card counts and a photo of the wrapper or packaging move a set up the queue considerably. Regional and food-premium issues get priority — that's the gap this site exists to close.
Sellers
Listings are attached to catalogued cards only, and every listing carries a verification date. Reach out if you want your inventory linked into the checklists.