MFF Underdog Draft Helper

Live Underdog draft picks from Jack's rankings + BBM advance-rate optimizer. Stacks, cliffs, and live PPG-by-position projections.

The MFF Underdog Draft Helper is a Chrome extension that adds a live recommendation sidebar to your Underdog Fantasy drafts. Built for Best Ball Mania, it surfaces the best pick on your clock by combining Jack's rankings with a BBM advance-rate optimizer and statistical shrinkage so small-sample builds don't dominate. WHAT IT SHOWS LIVE • Best Player Available — value-weighted using Jack's rankings + Underdog ADP • Stacking analysis — flags QB+pass-catcher pairings on your roster • True-cliff milestones — get warned when a position is about to fall off • Recency-weighted historical data — recent BBM seasons matter more • Pick-by-rank-by-round priors so the tool understands draft context, not just BPA HOW IT WORKS The sidebar reads draft state from the Underdog page and matches it against rankings synced from your account at myfantasyfootball.org. All data stays on your computer in Chrome's local storage — nothing is transmitted to a third-party server. REQUIREMENTS • A myfantasyfootball.org account if you want to use your custom rankings (free — Jack's official rankings work without sign-in) • Active Underdog Fantasy account (the extension reads draft state from Underdog's own pages) PRIVACY Full privacy policy at https://myfantasyfootball.org/privacy.html. We don't collect, transmit, or share user data. SOURCE This is a personal project, not affiliated with Underdog Fantasy.