Start with a league
Connect above to see your team, dynasty position, and trade opportunities.
Fantasy League War Room · a league-specific scenario model, not a generic ranking
Your league, priced against its own replacement level.
See where your team stands, what its assets are worth, and which moves change the picture.
you are
Your fantasy leagues
Paste your league link. Connect access if needed. Then choose your team.
Sign in or create your Data Dawgs account to connect ESPN, save leagues across devices, and use your own AI.
Start here: copy the address of your league’s page from Sleeper, ESPN, or Yahoo and paste it below. Private ESPN leagues need an extra setup step on a computer.
Paste a league URL, or choose a platform and enter its ID. Private ESPN leagues connect here after an access check.
One more step: connect ESPN
You can see your private league because you are signed in to ESPN. Data Dawgs needs your ESPN access details to read it too.
Use a computer for this setup. After connecting, you can open your league here on your phone while signed in to the same Data Dawgs account.
Get your two ESPN access values
- Open your league on ESPN ↗ in Chrome or Edge on a computer. Sign in to the ESPN account that can see this league.
- On the ESPN page, open the browser’s tools: press Ctrl + Shift + I on Windows, or ⌘ + Option + I on a Mac.
- Choose Application at the top of the tools. If it is hidden, look under ». In the left sidebar, expand Cookies under Storage and select the ESPN address.
- Find the row named espn_s2. Copy its entire Value and paste it in the first box below. Then copy the SWID value into the second box, keeping any curly braces.
- Select Connect ESPN and choose my team. We’ll check access and open your league.
Can’t find those rows?
Check that your league is visible on the ESPN page and that you selected an ESPN address under Cookies. Reload the ESPN page after signing in, then check again. These are browser cookie values, not your ESPN password or league ID. See Chrome’s illustrated guide ↗.
Treat these values like a password: paste only your own into this form, not into chat or a message. Data Dawgs stores them encrypted and uses them to read your league. You may need to reconnect when they expire.
Current league context
Want to ask your own AI about this league? Connect your AI after saving your league and choosing your team. This step is optional.
Which team is yours?
Pick it once. Everything on this page is measured against it, so nothing is calculated until you do.
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Overall
Positional shape
Your starters against this league’s average.
Where you gain and lose
Weekly advantage or deficit at each position.
Starters and depth
Value in your lineup versus value on your bench.
Priced on
What to do about it
Highest-impact moves supported by the current inputs.
Playoff odds need a connected league
The simulation needs three things this page cannot invent: your roster slots, your scoring settings and your week-by-week schedule. All three come from the league you connect. Nothing here is precomputed from a generic 12-team default.
Selected team
—%
Run the deterministic season simulation.
Where you stand
Projected starter strength before simulation. The highlighted row is your selected team.
| Team | VOR / wk | Playoff |
|---|
Replacement level is computed, not assumed
Two leagues with the same team count can have different replacement levels if one runs two flex spots and the other runs one. This station derives the replacement rank for every position from your slot counts and the positional mix that actually fills your flex, then prices each starter against it.
Replacement level
Computed from this league's slots and flex usage. Cross-position comparisons use value over replacement, never raw points. Unknown slots are shown but excluded from VOR.
Roster strength
Starter value above the worst startable player at each position.
| Position | VOR / wk |
|---|
Value matrix
Green is a surplus, red a deficit. Click any cell to carry that team and position into the trade finder.
What your roster is worth, and how that compares
Connect a league to compare roster value.
Priced on
Best lineup this week
See your selected starters
The money table
Full-roster dollars include the bench. For Sleeper leagues, the starter split uses the best lineup by current-week projected points.
Your roster: this season vs dynasty
Delta = dynasty minus this season.
What you paid vs the active price board
Draft capital Dynasty · beside roster value, not added to it
Where the money is
Roster dollars by position, with the bench pooled as one segment. Dashed = league average.
Where the provider and Data Dawgs ranks disagree Optional. Data Dawgs ranks against the provider's own projected points over replacement — no price on this chart, so a bargain does not show up here. For what a pick was worth, use the two cards above.
Best buys
Worth the most above what was paid for them.
Biggest overpays
Cost the most above what they are worth.
Sell high
Buy low
Trades the room should call fair
Shape of every roster
Position-by-position roster shape. Dashed = league average.
Connect a league to find mutual gains
The screen keeps one-for-one swaps that improve both starting lineups.
Trade finder
Priced on
One-for-one candidates that improve both lineups and clear the active value screen. Candidate ideas—not acceptance predictions.
The dynasty lens needs a connected dynasty league
Connect a Sleeper dynasty league to compare what each roster can do this season with what its assets are worth overall.
Win now vs overall dynasty
Current-season buying power versus long-term asset value.
League map
Right means more this-season value; up means more dynasty value. The dashed lines are league averages.
Your roster’s price gaps
Above the diagonal is a long-term asset premium. Below it is win-now value that dynasty pricing discounts.
Trades across the two timelines
One side gains now; the other gains long-term value. Candidate conversations—not verdicts.
Every league, one desk
Your teams side by side, plus repeated-player exposure.
League by league
Your exposure
Players you hold in more than one league.
Your team identity
Used only when a league does not already have your team saved.
League settings
Provider values. Editing one creates a labelled what-if.
Connect a league to read its settings.
Method & footnotes
- Inputs
- Rosters, scoring and schedule come from your league provider at the moment you connect, and are frozen there. Projections are Sleeper's, third-party and unaudited; this page produces none of its own. ⚠️ Every simulated week uses the same season-average projection. No opponent adjustment, no bye, no rest-of-season curve — a season is modelled as fourteen copies of week 1 plus noise. That is the single largest gap between what the odds look like and what they are worth.
- Replacement level
- Every team's starting lineup is filled from the projectable pool — dedicated slots first, then each flex slot to the best remaining eligible player. The best player nobody started is the replacement at his position, and every starter is priced against that. Flex demand therefore lands where the players actually land instead of being allocated by a positional share.
- The simulation
- 20,000 seasons. Each week every team scores its VOR total plus a normal draw with standard deviation σ. The seed is derived from the league ID and your settings, so identical inputs give an identical number every time — rerun it and check. A sanity check asserts that expected berths sum to the playoff spots, and throws rather than reporting a number if they don't.
- What a trade proposal has to clear
- Three gates. Both starting lineups must improve when the slot assignment is re-run after the swap. A swap
that would leave either side unable to fill a starting slot it could fill before is refused outright, whatever
the points say — that is how you get offered your only quarterback for a wideout. And the two players must be
within
max($4, 35% of the dearer player)of each other on the active price board. Yahoo 773763 uses DataDawg$ from/data/datadawg-dollars-values.json; other redraft rooms use the matching Public Market Value column in/data/pool.json. If either player has no published price, that pairing falls back tomax(1.0, 35%)in projected value over replacement and the row is labelled as model-based. - Why market value and not points
- A bench player contributes exactly zero to a starting-lineup total. Judge a trade on lineup gain alone and a rival holding a benched WR1 "gains" by shipping him for anything that fills an empty slot — which is how this tool once offered Harrison Butker for Jaylen Waddle and reported both lineups improving. It did. The arithmetic was right and the question was wrong. Market value asks the question a league-mate actually answers. Prices are a dated snapshot, not a live market, and every board says which date it is using. This is a candidate screen, not a fairness oracle: it cannot see acceptance probability, a manager's preferences, depth needs, injury risk, or multi-player construction.
- Which value horizon is used
- Redraft and keeper leagues use the dated this-season market snapshot in
/data/pool.json. Sleeper dynasty leagues expose a toggle between that this-season price and the independent overall board in/data/dynasty-ranks.json, selecting 1QB or Superflex / TE-premium dynasty values from the actual roster slots. The Money sheet shows both prices and their delta for every player. Keeper rules vary too much to infer a multi-year value without contract length and keeper cost, so the page labels them and stays on this-season values. - Current-week lineups on Money
- For Sleeper leagues, the Money sheet reads the current NFL week and maximizes projected points across each roster's legal starting slots, using Sleeper's weekly stat projections and the league's scoring settings. Its weekly score and rank use those lineups; the dollar charts split the dated roster prices between the same starters and bench. Full-roster dollars still include both. Missing weekly projections are excluded and counted; incomplete lineups withhold comparisons. The week and capture time are shown, with a refresh button. This is a projected lineup, not your submitted lineup, and game locks are not enforced.
- Not modeled in the season simulation
- Injuries, byes, trades, waivers, lineup decisions, in-season projection updates, and correlation between the two teams in a matchup. Before three completed weeks, σ is a stated generic assumption, not an estimate from your league.
- Not built yet
- Rest-of-season curves or a weekly-input season simulation · private Yahoo league reads · the man-games replacement baseline · multi-player and 2-for-1 trades · playoff-odds re-simulation of a proposed trade.
- Machine access
- The numbers on this page are your league, so there is no public JSON of them and there is not
going to be — a file here would publish every connected league's valuations. The machine surface is the
dd_war_roomMCP tool, which reads leagues saved on your account. Sleeper uses this page’s shared current-context feed; ESPN and Yahoo provide their connected roster feeds. Sign in here and save a Sleeper league, then usedd_fantasy_leaguesin your personal AI connection to select it. Missing source coverage stays explicit. The pricing method is public and league-agnostic: datadawg-dollars-method.md. Everything the site publishes for machines, with an honest live/planned/none status per surface, is in surfaces.json. - Receipts
- This tool issues none. Its odds are recomputed live from current inputs and are never logged before kickoff, so they are not receipts and do not appear on the scoreboard. Treat them as a calculator, not a prediction record. The graded work is on Receipts.
Connect a league to see the provenance line for the numbers on screen.