Meet Brierboard — Forecasting tournaments with your friends
Brierboard runs friendly forecasting tournaments.
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Brierboard
Forecasting tournaments with your friends.
Every feature, from the first launch.
No account, no login, no cloud. Everything runs on your device and works fully offline — nothing in this post is hidden behind a wall.
What Brierboard does
Brierboard runs friendly forecasting tournaments. You set a season (say, 6 weeks of NFL outcomes), invite friends, everyone enters probabilities for the season's slate, and Brierboard scores everyone with Brier on every resolution. The leaderboard updates as games resolve.
A look inside
Tap any screenshot to open the full-resolution version.
What's inside
- Tournaments — Multi-question seasons.
- Leaderboard — Brier scoring.
Why we built it
Outguess covers one-off questions; Brierboard is the season-long tournament container.
What makes it different
Tournament-format prediction club. Not gambling. Not Manifold (money). Friend-scale.
Who it's for
Built for anyone who values fast, private, on-device software with a calm, focused UX.
In one line: Forecasting tournaments with your friends.
Try it
See the Brierboard app page for the full feature list, the info table, and support links.
Use Brierboard, found a bug, or have a feature request? Comments are open below — anonymous is fine.



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