Forged Rating
How strong a player's actual results are, adjusted for who they played. Beating a higher-rated opponent counts for more; the tournament's name does not.
Forged League's own rating.
Form
What is happening recently: the last results against what the ratings expected, and the rating change over 30 days.
Forged Rating, in plain words
- Only the result counts — win or loss. Scores are recorded but a 21–5 win moves a rating exactly as much as 22–20, so nobody gains by running up a score.
- Each player starts at 1,500 with high uncertainty. The first results move the rating a lot; as evidence builds, it settles. A rating is Provisional under 5 rated matches, Established from 15 matches once it has settled.
- Every tournament is processed as one block, oldest first, and every match in it is judged against the ratings from before the tournament — the order matches were played in cannot change the outcome.
- Time away makes a rating less certain; it does not make it lower.
- A rating never resets when a player moves up an age group. Singles, doubles and mixed are rated separately; each pair also has its own record.
- Not rated: walkovers, byes, unplayed matches, disqualifications, and retirements before a full game was completed.
- A correction to a result rebuilds the history from that point, so ratings always equal what the corrected record produces.
- Players are only ranked against people they are connected to through matches. Two groups that have never played each other are not ordered against each other.
Algorithm FPR_GLICKO2_V1 (a Glicko-2-based rating system; τ = 0.5, one rating period per tournament) · 238 rated matches · reproducibility digest 027fddcd96cab93b
What the rating is built from
Results of badminton tournaments available to Forged League. The rating includes only the tournaments listed under Source coverage; when results are missing, the page says so. Forged League does not publish Alberta or Canada ranking projections.
What is public, and what never is
A player's competition profile is public: name, age group, discipline, Forged Rating and Forged Rank, results, form and head-to-head records. It exists without a Forged account.
Never shown: member numbers, contact details, birth dates, addresses, account or guardian information, identity-review records or any internal record of where the data came from. Forged League does not collect contact details, birth dates or addresses for rankings at all. Players who share a name are kept apart; Forged never merges people by name.
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