Everything
behind the
number

League platforms

Public, read-only league context: rosters, settings, drafts, matchups, transactions.

• ESPN - protected active - 5 capabilities: public league context, live draft picks, historical draft results, league settings, roster rules.
• SLEEPER - protected active - 8 capabilities: public league context, live draft picks, historical draft results, league settings, rosters, transactions, matchups, trending players.
• YAHOO - protected active - 5 capabilities: public league context, league settings, rosters, weekly player projections, external league benchmarks.

NFL performance data

Official-style box scores, weekly player stats and season summaries feeding team and player DaD numbers.

• nflverse_play_by_play - open project with underlying rights caveat - football input
• nflverse_rosters_schedules - open project with underlying rights caveat - football input
• nflverse_next_gen_weekly - public summary with underlying rights caveat - football input
• nflverse_depth_charts - open project with provider change history - football input
• nflverse_snap_counts_advanced - open project with underlying provider caveat - football input
• nflverse_ftn_charting - open charting subset share alike - football input
• ffopportunity_expected_points - open model and derived data share alike - derived football input
• nws_forecast_vintages - official government public domain unless annotated - football input
• fantasyfootballcalculator_adp - documented public api - context only
• sleeper_public_context - documented read only api noncommercial - context only
• collegefootballdata_api - documented commercial api - football input
• official_nfl_injury_reports - official public evidence manual or approved adapter - football input
• nfl_big_data_bowl_tracking - competition data noncommercial restricted - research method
• historical_market_lines_research - market data rights caveat - external baseline

Trade and valuation markets

Real-trade-derived prices and pick values. Market price is what people pay; it is never presented as what a player will produce.

• DraftADynasty first-party observations - accepted_or_rejected_recommendations,consented_player_comparisons,model_feedback,proprietary_market_signal
• FantasyCalc - external_market_benchmark,trade_comparison_baseline
• Fantasy Football Calculator ADP - redraft_draft_market_rank,public_adp_context,opponent_pick_timing
• DynastyProcess open data - open_dynasty_value_benchmark,multi_source_trade_consensus,future_pick_value_benchmark
• FTN charting via nflverse - offensive_scheme_features,play_level_charting,pressure_and_receiver_context
• nflverse core data - historical_play_by_play,player_and_team_statistics,player_identity_bridge,rosters_and_schedules
• Sleeper documented read-only API - draft_and_transaction_context,league_scoring_and_format,rosters_and_matchups,sleeper_player_identity
• SportsDataIO NFL API - commercially_licensed_injuries,commercially_licensed_player_statistics,depth_charts,production_data_fallback
• Sportradar NFL API - commercial_provider_candidate,injuries_and_depth_charts,official_statistics_candidate
• Drafttek college prospect board - attributed_college_prospect_display
• FantasyFootballCalculator average draft position - labeled_market_prior,declared_adp_only_baseline
• nflverse NFL Scouting Combine results (Pro-Football-Reference derived) - rookie_athletic_testing_features
• nflverse team depth chart history - declared_role_features,redraft_model_features
• nflverse draft pick history (Pro-Football-Reference derived) - draft_round,draft_overall_pick
• nflverse official injury report history - availability_risk_features,redraft_model_features
• nflverse player identity crosswalk - player_identity_bridge
• nflverse season rosters - time_correct_birth_date,career_entry_year,draft_slot,player_identity_bridge
• nflverse snap counts (Pro-Football-Reference derived) - participation_share,role_confirmation
• nflverse player season summaries - player_season_production,opportunity_share,efficiency_context,redraft_model_features
• nflverse team season summaries - team_volume,team_pass_rate,offensive_environment

Draft-cost and expert evidence

Mock-draft ADP and published expert boards. Draft cost and expert consensus stay separate from player value and from projections.

• Fantasy Football Calculator - Public mock-draft ADP by format and team count.
• Captured expert boards - Published expert rankings captured with dates inside the draft-evidence dataset.
• Sleeper trending adds - Public trending-reads context for league-wide demand.

Free public data feeds

Documented free sources with attribution, access mode, product use and cache windows. Live connectivity is monitored separately.

• Sleeper - fantasy platform - public no key

  Attribution: League and roster data from Sleeper. DraftADynasty is not affiliated with Sleeper.

• nflverse - open football data - public no key

  Attribution: nflverse; preserve dataset-specific attribution such as FTN Data via nflverse where applicable.

• National Weather Service - weather - public no key

  Attribution: Weather forecast from the US National Weather Service.

• Kalshi - prediction market - authorization required

  Attribution: Market data from Kalshi; informational display only.

• Polymarket - prediction market - public no key

  Attribution: Market context from Polymarket public market-data APIs; DraftADynasty is not affiliated with Polymarket.

• The Odds API - sportsbook aggregator - free key optional

  Attribution: Sportsbook prices via The Odds API; source book and timestamp remain attached.

Prediction markets

Team win-probability quotes with vig removed where both sides are quoted. Research context; never a ranking input.

• Polymarket - exchange
• Kalshi - exchange
• Robinhood - broker_router
• Approved prediction-market partners - exchange_or_aggregator

Press and news feeds

League and team press registries (1 league entries plus team feeds) for availability and injury context. A report is an attributed observation, never a model fact by itself.

• League and team press registry - Verified feeds with authority class and ingestion state; see the press-sources dataset for the full list.

What the sources feed

• Player value consensus - real-trade markets combined into one format-aware board, with every raw source kept visible.
• Weekly projections - DraftADynasty aggregates admitted forecasts by originating source family. Upstream sources, including ESPN, Rotowire via Sleeper and Yahoo, retain their attribution in source details; FantasyPros expert ranks provide context. Public projections require a current verified aggregate. When it is unavailable, the board shows an updating status.
• Value versus draft cost - where the trade market and the draft room disagree, both numbers named.
• Graded board log - every published board snapshotted before outcomes and graded after.

The fine print, once

This applies to every page, so no page repeats it under its tables and charts.

• Scores, stats, standings and game lines come from ESPN's public feed; lines are the book ESPN names (usually DraftKings). They can lag the action, and lines move.
• Win probability before kickoff is implied by the moneyline with the bookmaker's margin removed. It is the line's view, separate from DraftADynasty forecasts.
• Lines, odds and prediction-market prices are shown for information only. DraftADynasty does not take bets, place trades or give betting, DFS or financial advice.
• Player values are trade-market prices, not projections. 30d is how much a player's trade value moved in the last 30 days.
• Win chances under 1% show as <1%, never as zero.
• PressWire links official team and league media in each official index's order instead of inventing a league-wide chronology. Headlines are not automatic DraftADynasty fantasy conclusions, and an undated card is current-week source context.
• Win-now estimates count current rosters only. Future picks count toward franchise value but never count toward win-now.
• Scenario and survivor math assumes independent game outcomes unless it says otherwise. Survivor history describes the paths past winners took: it is outcome-conditioned, not causal.
• Visual lab lenses are defined before they are measured; a chart appears only once its data is verified, dated and cleared, and planned or research-only lenses are labeled as such.
• Watchlists, favorites and recent leagues are kept in your browser and do not sync across devices.
• Missing data stays unavailable; it is never silently treated as zero.
• Draft numbers are likely and unlikely outcomes with the evidence shown - not guarantees.
• Research visibility never promotes a signal into public rankings by itself.
• Random variation is labeled as noise; patterns must survive backtests before they change a number.
• No provider write access, no account records in public data.