Winter 2025 League | DerbyFish
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Winter 2025 DerbyFish League

December 21, 2025 – February 28, 2026

Free to play. Every catch you log in Winter 2025 on the DerbyFish app is automatically scored.

Join the LeagueDownload App

How the league works

  • Always-on auto-enrollment. Open the app, log a catch — you're in. No signup queue, no entry fee.
  • Gold-index scoring. Every verified catch earns a normalized 0–100 score that compares it against the world-record class for that species.
  • Verification. AI species ID + digital measurement on a bump board photo. No paper rulers, no honor system.
  • Compete Badge — Season Pass ($20/season). Required to score on the official leaderboard. Skip any season you don't want to play.