The official record book for your fantasy league

Fantasy Almanac

Turn your Sleeper league into a living record book — champions, all-time records, a Hall of Fame, head-to-head rivalries, live playoff odds, a draft board, and more. Works with any Sleeper league.

In the Sleeper app, open your league — the long number in the URL (sleeper.com/leagues/1234567890…) is your league ID.

🏆 Champions & records⭐ Hall of Fame⚔️ Head-to-head🎲 Live odds📊 Playoff machine📋 Draft board

Pick a look:

How it works

Paste your league ID. Grab it from the Sleeper app — the long number after /leagues/ in the URL — and drop it in the box above.
Pick your look. Choose a theme; it’s saved right in your link.
Share the link. You get a permanent link to your league’s almanac. Send it to your league — it updates itself all season.

Questions

Is it free? Yes — completely free to create and share.

Does it work with any Sleeper league? Any Sleeper NFL league, with as much history as your league has on Sleeper.

Do I need to be the commissioner? No — anyone with the league ID can build it.

Is my league’s data safe? The site runs entirely in your browser and pulls public data straight from Sleeper. We don’t have a server or store anything about you. See our privacy policy.

Does it update during the season? Yes — it reads live from Sleeper on every load, so standings, scores, odds, and recaps stay current.