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.
Every almanac is built from your league’s real history and settings. You get an all-time record book and a Hall of Fame of the best individual seasons and weeks; a head-to-head ledger showing who owns who across every manager, plus each person’s nemesis; a full champions and last-place archive; live standings with a playoff-odds machine you can run what-if scenarios in; weekly previews and recaps; a draft board with grades; and a for-fun sportsbook of title odds and weekly lines. Dynasty and keeper leagues unlock extra tools — roster power rankings, contention windows, draft-capital tracking, keeper bargains, and more. Curious how a number is calculated? The stats guide explains every one.
/leagues/ in the app’s URL — or switch to Find all my leagues and enter your Sleeper username to pick from every league on your account.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.
I run several leagues — do I need a bookmark for each? No. Choose “Find all my leagues,” enter your Sleeper username, and every league on your account is listed in one place — open any almanac with one tap.
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.