DL BEST BALLDL Best Ball — draft intelligence for Underdog & DraftKings
It reads your draft board as you pick and ranks who's left against the roster you already have — so the call is still yours, just better informed. Underdog and DraftKings, half-PPR and full-PPR. The simulator behind it is free. Members also get the DFS optimizer: DraftKings Classic and Showdown lineups, rebuilt every week with the latest injuries.
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106 engine updates shipped since Jul 17 · last: Sep 26
New for members: DFS optimizer
DraftKings Classic and Showdown lineups built from usage, Vegas lines and simulated games, rebuilt every week with the latest injuries and weather. Every build deals four hands, each in its own suit:
Showdown adds game scripts for blowouts and shootouts. Lock or exclude anyone, boost a player, or type in your own projection.
Top projected 1
Highest ceiling 1
Highest floor 1
Tournament lineup 1
Example build: week 5 main slate
No autopick, no black box. Every player is scored against your roster and your exposure, with the reason shown — take it or overrule it.
Best ball is won in the playoff run, so stacks are valued by the game they land in and ceilings are held to what the position actually produces.
Real ADP off the board as it moves, your roster so far, and your exposure across every team you've drafted — updated on every pick.
Upload your Underdog or DraftKings export and each team comes back scored three ways — regular season, the playoff run, and how much of the roster booms in the same week — then graded from S down to F. Spot the quiet builds primed to peak in Week 17, and the ones that look fine on paper but have nothing left when it counts.
Weeks 15–17 are run as real pod knockouts, not a blended average — win your 12-team pod, then a bigger one, then the whole field. Rosters that mirror the field's spikes advance less, so differentiated ceiling is what actually wins.
Projections from usage. Three seasons of target share, carry share and snap rate — not name recognition. Camp news applied by hand through August.
Weekly shape, not just totals. Each player carries a skew fitted from his own game logs, because a few enormous weeks matter more than a tidy average.
Top-down meets bottom-up. Projections are checked against Vegas team totals, so a position room adds up to what the offense actually produces — not a pile of optimistic individuals.
Injuries and contingency. Seasons are simulated with injuries, and a starter's workload flows down the depth chart when he goes down. Handcuffs and ambiguous backfields carry real value, not just a roster spot.
Game-script cascading. Each game rolls a shared shootout environment — both teams' receivers and quarterbacks spike in the same high-scoring games, and running backs are damped when the pace turns to passing.
One engine, two tools. The extension runs the simulator's own code, copied in at build time, with a check that fails the build if they diverge.
Open the simulator free — no account needed.
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