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Leagues and challengesFish against your mates
A league is a friendly competition run inside CatchTank. Join a public challenge, or start a private league for your club or your group of friends. CatchTank launches on iPhone in early December 2026.
Public challenges and private leagues
Public challenges. Anyone can join. A public challenge is reviewed by us before it goes live.
Private leagues. Only people with your join code can enter. Good for a club, a syndicate or a group of mates.
Both have a live league table you can open on your phone. Nobody has to join, and anyone can leave at any time.
Screenshot: App Store preview image with example data.
What you can compete for
Most species
A species hunt. Who can catch the most different kinds?
Biggest of one species
The longest pike, carp or perch.
Biggest fish
The longest fish of any kind.
Total weight
The combined weight of every fish.
Join, log, check the table
Join
Enter the join code for a private league, or pick a public challenge.
Log a catch
Log it with a photo and enter it in the league.
Check the table
The live table updates as entries come in.
Entries get automatic checks, such as whether the catch is inside the dates and the photo looks right, so obvious problems are flagged. The league rules say how entries are judged.
Example league formats
Mix the four scoring types with a start and a finish. A few formats to borrow.
Club species cup
Most species, from spring to autumn. Rewards the angler who fishes a bit of everything.
Winter perch league
Biggest of one species, from December to February. Perch are catchable almost everywhere.
Monthly pike ladder
Start a new biggest-pike league each month and keep a running scoreboard.
Syndicate weight race
Total weight over a weekend, for a syndicate or a group trip.
Specimen of the year
Biggest fish overall across a whole season, with the longest fish taking the title.
The bacon roll bet
A week, biggest fish, and the loser buys the bacon rolls.
Start your own
- In the app, open Challenges and choose to start a new one.
- Give it a name and pick what you’re competing for (the four kinds above).
- Choose the dates: a day, a week, a month, a season or your own.
- Choose private (mates join with a code) or public.
- Add your rules and, if you like, a prize. It can be as small as the loser buying the bacon rolls.
- Share the join code.
For clubs and groups
A club can run a season-long league for its members, on its own waters or anywhere. For a few pilot clubs this winter we’ll help set it up and write a one-page “how to join” for your noticeboard or newsletter. It’s a friendly extra, not a replacement for your membership, permits or match systems.
Catch photos and details belong to each member, who controls what they share. Exact swims are never published and under-18s are never shown on public pages. See the community guidelines.