The Problem
Navigating box configurations, new release checklists, and pull odds is difficult and time-consuming — even for experienced hobby enthusiasts. Without a way to combine the odds of a set with its full checklist, collectors are left sifting through PDFs and building their own spreadsheets just to understand what's available and what their chances are.
What We Built
Checklist² combines set checklists, box configurations, and pack odds into a single easy lookup. Search for any athlete, browse any set, and instantly understand what cards exist and how likely you are to pull them. No spreadsheets. No PDFs. Just answers.
Who It's For
Collectors
Find the cards you want, understand how many cards an athlete has in a set, and make smarter decisions about what to pursue.
Breakers
Access tools that make setting up breaks faster and pricing athletes easier — including downloadable break sheets formatted for Whatnot.
Checklist² believes that finding a card or athlete shouldn't mean sifting through PDFs. It should be easier than that. Straightforward. Built for everyone in the hobby.
Features
Set Checklists
Complete player and card listings for every set.
Break Hit Calculator
Pull probability for any athlete across any number of cases.
Pack Odds
Official odds by insert set, parallel, and box format.
Athlete Leaderboard
See which athletes appear most across all insert sets in a release.
Break Sheet Builder
Generate Whatnot-ready break sheets in one click.