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; the one paid feed is the Pinnacle sharp reference line.

Updated Jul 2026 · Part of the models series

All models use free, publicly available APIs. Every projection input is free public data; the one paid feed is the Pinnacle sharp reference line described below, which never touches a projection.

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. The Pinnacle sharp line comes from the-odds-api.com, the one paid feed. It supplies a no-vig reference price and stays outside the projection engine and bettable-book set.

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.