Break Sheet Builder
How the Break Sheet Builder works and what each column in the downloaded CSV contains.
What is the Break Sheet Builder?
The Break Sheet Builder is a tool built into every set page on Checklist2. It generates a Whatnot-ready CSV file pre-filled with athlete slots for a break, saving breakers hours of manual data entry. Each row in the CSV represents one purchasable slot -- the buyer of that slot receives all cards pulled for that athlete during the break.
Where does it appear?
The Break Sheet Builder button appears in the header of every set page. Clicking it opens a modal where breakers can customize the output before downloading.
What can you customize?
Break Description
A free-text field that populates the Description column for every row (e.g. 3 Cases! 2024 Topps Midnight UFC -- 24 Boxes | 72 Autos).
Listing Type
Choose between Buy it Now or Auction, which populates the Type column.
Tag Labels
Define how each card type appears in the athlete's title (e.g. AUTO, MEM AUTO, RELIC, RC). These can be customized before downloading.
Live Preview
See exactly how the first few rows will look before downloading.
How are athlete titles generated?
Each athlete's title is automatically built from their card data in the set. The builder scans every card appearance and summarizes what that athlete has using the customizable tag labels. For example:
Islam Makhachev (AUTOx3)(RELIC)
Cooper Flagg (RC)(AUTO)
Paul Skenes (AUTOx2)(MEM AUTO)
What does each CSV column contain?
| Column | Value |
|---|---|
| Category | Sport-based (e.g. "UFC Breaks", "NBA Breaks") |
| Sub Category | League name (e.g. "UFC", "NBA") |
| Title | Auto-generated athlete title with tag summary |
| Description | Breaker's custom break description |
| Quantity | Always 1 |
| Type | Buy it Now or Auction |
| Price | Empty -- breaker fills in after download |
| Shipping Profile | Empty |
| Offerable | TRUE |
| Hazmat | Not Hazmat |
| Condition | New |
| Cost Per Item | Empty |
| SKU | Empty |
| Image URLs | Empty |
What platforms support this CSV format?
The CSV is formatted specifically for Whatnot, the leading live break platform. The column structure matches Whatnot's bulk listing upload template exactly, allowing breakers to upload the file directly after adding their prices.
Tips for breakers
- --Use the Break Description field to include case and box counts and key hit guarantees -- buyers look for this info before purchasing slots.
- --Download the CSV, add your prices in a spreadsheet, then upload directly to Whatnot.
- --The file is named automatically: [Set Name] - Break Sheet.csv