About Copycat Detective

Built for money-league commissioners who want receipts

Score every manager in your mini-league against tracked FPL creators — overlap ranks, GW receipts, Live tables, and DIY head-to-head graphics. Official FPL data, private by default. Free: 3 scans/week · unlimited leagues · last 4 finished GWs · H2H 2 faces (Season/Pro 6).

What makes it different

Whole-league scans

Enter a mini-league ID and get every manager ranked — not just your own team vs one creator. Same verified creator roster on Free and paid.

DIY graphics studio

Head-to-head posters, form kings, value hunts — build share-ready boards on Market. Live cycles the catalog for you.

Transfer timing

We don't just compare squads — we check whether transfers landed after a creator made the same move.

Private by default

Only you see a scan unless you publish a Season share link. League ID alone never dumps your money-league table.

Season-long view

Season Investigator unlocks full-year and custom GW scans — catch copycats who only started mirroring mid-season.

Copy score methodology

Each manager gets a headline copy score (0–100%) for how closely their squad tracks a matched FPL creator across the selected gameweeks. That number ranks the league table. Transfer timing, captain copy, and transfer overlap are extra forensic signals — combined into a separate commissioner “Blend” score, not the main ranking.

Headline copy score (ranking)

0–100

Weekly squad similarity vs the best-matching creator: Jaccard on the full 15-man squad (55 pts), same captain (+18), vice (+5), formation (+10), and starter overlap (up to +12). Averaged across scanned gameweeks. Wildcard / Free Hit weeks are excluded from the average.

Transfer timing (forensics)

sidecar

Whether they bought/sold a player the matched creator had already moved in the prior 1–3 gameweeks — a “trailing” signal. Shown in commissioner Blend; not the league table rank.

Captain copy index (forensics)

sidecar

How often their captain matched the closest creator week over week. Sidecar forensic signal.

Transfer overlap + forensic blend

Blend 45/20/20/15

Exact same-week transfer overlap is a sidecar. Commissioner “Blend” combines squad score (45%) + transfer timing (20%) + captain copy (20%) + transfer overlap (15%) for deeper forensics — separate from headline rank.

Verdict bands

  • 70%+Heavy copycat
  • 50–69%Moderate overlap
  • Below 50%Independent manager

Wildcard and Free Hit weeks are excluded from the average copy score (still shown on weekly breakdowns). Stability scores flag low-transfer “set and forget” managers. Scores are forensic estimates — not proof of cheating.

Data sources

All manager and league data comes from the official Fantasy Premier League API. Creator templates are built from publicly known FPL entry IDs maintained in our creator database. Copycat Detective is an independent tool — not affiliated with the Premier League or FPL.

Ready to scan your league?

Free: last 4 finished GWs · 3 scans/week · unlimited leagues · H2H 2 faces. Season/Pro: full current-year windows · H2H 6 faces (40 / 80 scans/week fair use). Prior seasons aren't re-scannable after FPL resets.