Where the data comes from

Every number on these pages comes from fantasy football leagues connected to Fantasy Hall of Fame from Yahoo, Sleeper, ESPN, CBS, MyFantasyLeague, Fleaflicker and Fantrax. We read the results each provider reports: matchups, standings and playoff brackets.

Privacy and the 20-league minimum

The pages show aggregates only. No league, team or manager is named or can be picked out. A league format or group appears only when it covers at least 20 different leagues. Rows with very few teams are left out of tables, because a rate built on a handful of teams is noise.

What counts

  • A season is one league’s regular season and playoffs in one year. Only completed seasons are included, not the one in progress.
  • A league imported by more than one member counts once.
  • Head-to-head points leagues only. Category and roto leagues are left out.
  • Scoring (PPR, half PPR, standard) comes from each season’s reception points, and the QB filter from its starting lineup slots: a second QB slot or a superflex slot counts as 2 QB. On the scores page, the passing TD filter (4 or 6 points) comes from each season’s points per touchdown pass. Seasons we can’t classify count in the all-leagues numbers only.
  • A team made the playoffs if it played at least one game in the winners bracket, so a team with a first-round bye counts. Consolation games don’t count.
  • A season is left out when its standings don’t add up: a team’s wins, losses and ties must equal the regular-season weeks.
  • Weekly scores are regular-season weeks only, one per team per week. A 0-0 game is missing data and skipped. For the scores page, a season is also left out when its average score runs more than 20% above or below the typical average for its scoring, QB format and passing TD points, such as leagues with very large lineups or bonus-heavy scoring, where a big week means something different.

How often it’s updated

Each page shows the date its data was computed. We recompute a page when a season finishes or the method changes, and review every refresh before it’s published.

Known limits

Providers store some seasons differently, and a few leagues have divisions or custom playoff rules. Those show up as rare results that look impossible, like a 13-1 team missing the playoffs. We leave them in and report rates to the nearest percent, with 99%+ and under 1% at the ends.