Draft Sonar
Reads the board.
Never touches it.
Draft Sonar is a free Chrome extension that watches your Yahoo fantasy football draft live — every pick, every run, every tier collapse — and tells you who actually survives to your next turn. It never drafts for you. You stay on the clock.
the button flips to Install the moment it clears
The overlay that earns its pixels
One draggable panel over the draft room. Everything in it is computed live from your league's actual settings and the picks on the board.
Survival odds
Every recommendation shows the chance a player is still there at your next pick — learned from how this room drafts, not a generic sheet.
Tier & run alerts
"Last Tier-2 TE on the board." "RB run on: 5 of the last 8 picks." The board state you'd want a co-manager whispering.
League auto-config
Teams, your slot, roster shape, and scoring detected from the draft room itself — including superflex, TE-premium, and 6-pt passing leagues.
Superflex-aware ADP
2QB leagues run on a real 2QB market — where Josh Allen goes 2nd overall, not 33rd. Survival odds stay honest from pick one.
Self-healing sync
Page reloaded? Installed mid-draft? The board reconstructs from Yahoo's own grid and keeps healing every 60 seconds.
Draft grade
When the last pick lands: a letter grade against your actual league, the takeaways that explain it, and your roster ready to copy anywhere.
Read-only is the feature
Draft Sonar has no draft button, no autopick, and no access to your Yahoo account. It reads the draft page you're already looking at — nothing else — and your league data never leaves your browser. Your picks are yours. We just make sure you see the whole board before you make them.