Best Ball Domain

Underdog entry export · nothing leaves your browser

Drop your entry export here

One row per pick, straight from Underdog. Nothing is uploaded — it is parsed in this page.

Several files at once is fine, to combine seasons or contest types.

No export handy? of 50 simulated entries.

Getting the export

  1. Open Underdog on desktop and go to your drafts, then export your entries as CSV.
  2. Only completed drafts are included, so live slow drafts will be missing.
  3. Drop the file here. Drop several to combine contest types or seasons.

ADP

Closing season ADP is built in, so value, capital and projected points work the moment you drop your entries in. To use a different set, drop a rankings CSV in as well — an uploaded file always overrides the built-in table, and it joins on player ids so nothing is lost to spelling.

Everything runs locally in this file. There is no server, no account, and no analytics.

What this does

Best Ball Domain reads the entry export from Underdog Fantasy and turns a few hundred rows of picks into the things you actually want to know about a best ball portfolio: which players you are on, how your rosters are built, whether your quarterbacks are stacked, and whether you drafted ahead of or behind the market.

Player exposure

Every player you drafted, with the number of entries holding him and your exposure as a share of the portfolio. Exposure is measured against whatever is currently in view, so filtering to one contest or one build shape gives you exposure inside that slice rather than across everything. Each player opens to show his average draft position against yours, which rounds you tend to take him in, who you most often draft alongside him, and every team of yours that holds him.

Roster construction

Builds are counted by position, so you can see how often you end up on three quarterbacks or eight receivers, and how those shapes performed historically. Teams are also labelled with structural types — Zero RB, Elite TE, Anchor WR, Robust RB, Bully QB and others — and every rule behind those labels is editable, because everyone defines them slightly differently.

Stacking and playoff correlation

A team stack is a quarterback paired with a pass catcher from his own club. The tool finds them automatically, reports how many of your quarterbacks are stacked and how deep, and then counts correlated players separately for weeks 15, 16 and 17, since each playoff round is decided by a single week of football rather than a season.

ADP value and draft capital

Closing average draft position is built in, so value works the moment you drop a file in. ADP value is your pick number minus the market's, summed across the roster. Draft capital weights the same comparison by where in the draft it happened, which matters because a bargain in round two is worth considerably more than the same number of spots gained in round eighteen.

Nothing is uploaded

The whole tool is a single HTML file. Your export is parsed in the browser, there is no server or database behind it, no analytics, no cookies and no storage of any kind. The page makes no network requests at all, which you can verify by reading the source. It also means a reload starts over.