Keeper League Intelligence
Know what to do next in your keeper league
Mayhem turns your league's rosters, draft history, and ADP data into a ranked, explained keeper decision for every player — then keeps helping through the draft, trades, and waivers.
One league workspace, not a pile of tools
Keeper Optimizer
Every eligible player is scored by comparing keeper cost against ADP value, weighted for your league's scoring format, roster settings, and keeper rules — not a generic ranking.
League HQ
One dashboard leads with the single highest-priority decision or risk in your league right now, with supporting detail underneath — not a wall of tables to dig through.
Mock Drafts
Simulate your upcoming draft against AI opponents with configurable personalities and difficulty, then get pick-by-pick grading and a personalized strategy plan.
Trades & Waivers
Evaluate a proposed trade before you make it, and rank available free agents by market value and your team's actual roster need.
Explainable, not a black box
Every recommendation shows its work
Mayhem never just hands you a verdict — it tells you why. You'll always see why a pick is recommended, what the best alternative was, and when the numbers were last updated. The recommendation itself comes from the same repeatable scoring every time, not a model that might answer differently tomorrow; Mayhem AI can explain what's on screen, but it doesn't change the numbers.
- Why Mayhem recommends this, in plain language
- The best alternative, not just the top pick
- Manual overrides for context the model can't know
How it works
Import your league
Pull teams, draft results, and rosters from Sleeper, Yahoo, or ESPN, or paste a CSV directly.
Run the optimizer
Every player is scored against your league's actual scoring format, roster rules, and keeper limits.
Review and decide
See the ranked recommendations with the reasoning behind each one, override where you have context the model doesn't, and finalize your keepers.
Commissioners handle the import once — teammates just log in and see their team automatically.
AI explains, it doesn't decide
The Mayhem AI assistant is a read-only coach: it explains the numbers already on screen for your league, and clearly says so when it doesn't have data for something. It can't submit waiver claims, execute trades, or change your roster.
Your league's data stays your league's
League data is scoped to the members of that league. Only a league's own rosters, draft history, and settings are used to generate its recommendations.
See your own keeper decisions
Create your league or sign in to an existing one — first recommendation is usually a couple of minutes away.