The models · 2 min read

Data Sources

The free, public data feeds behind each Fairline model: box scores, lineups, Statcast and xG, weather, arenas and venues. Every projection input is free public data.

Updated Jul 2026 · Part of the models series

All models use free, publicly available APIs. Every projection input is free public data.

MLB

  • -MLB Stats API (schedule, lineups, roster)
  • -FanGraphs (pitcher/batter leaderboards)
  • -NWS API (weather)
  • -Embedded park factors (30 stadiums)
  • -Embedded umpire database (121 umps)

NHL

  • -NHL API (schedule, game data)
  • -MoneyPuck (5v5 xG rates)
  • -Hockey Reference (goalie logs)
  • -DailyFaceoff (goalie confirmations)
  • -Embedded arena database (32 arenas)

EPL

  • -FPL API (player xG/xA, fixtures, injury status)
  • -PulseLive (confirmed starting XIs, ~60 min pre-KO)
  • -FBref via soccerdata (not currently wired; kept as the reinstatement path for xG inputs)
  • -Football-Data.co.uk (historical)
  • -Embedded venue database (20 stadiums)
  • -Embedded manager tracker

Sportsbook odds (Fanatics, FanDuel) come from odds-api.io. DraftKings and Kalshi are fetched directly from their own APIs. The best available price among those sources wins each line. No book price ever reaches the projection engine.

The parameter values on this page are rendered from the running system and refresh periodically; when a weight or threshold changes, this page reflects it automatically.