EAT THECHALK

But only the best.

DFS Tournament Simulator for DraftKings & FanDuel

Run 50,000 simulations per slate across NFL, NBA, MLB & NHL.

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Starting at $20/week. Cancel anytime.

50,000 simulations per slate

Ranked by Top-1% probability

Duplication-adjusted ROI modeling

Built for 150k-entry fields

CORE

Don't just play the field. Create the edge.

Large-field tournaments reward structure, leverage, and volatility. That's what we simulate.

Monte Carlo Simulation

50,000 correlated score scenarios generated per slate. Every lineup scored against the full outcome matrix.

Top-1% Ranking

Lineups ranked by probability of finishing in the top 1% of the contest, accounting for field ownership and duplication.

Ownership Leverage

Surface where the field is over-exposed and where leverage exists. Ownership acts as a signal, not a hard fade.

Game Script Engine

Sport-specific game environment simulation. Shootouts, blowouts, defensive battles, and comeback scripts.

Simulated Field

5,000 opponent lineups built from projected ownership. Your lineups compete against a realistic field.

Stack Correlation

Template-based stacks with configurable depth, bring-back support, and position filtering.

Exposure Controls

Per-player min/max caps with global portfolio limits. Build-time dampening and export-time enforcement.

Confidence Model

7-tier confidence weighting. High confidence tightens variance, low confidence widens it.

Late Swap

Automatic placement of later-starting players into flexible roster slots optimized for late swap eligibility.

The Lab

Hand-build lineups with hard roster, salary, and stacking constraints. OR-Tools solver completes partial lineups.

Portfolio Management

Correlation heatmaps, overlap detection, archetype distribution, health scoring across your lineup set.

ETC Projections

Projections and ownership data included with every plan. Upload your own or use ours.

PROCESS

1Configure

Pick slate, exposures, and build strategy.

2Simulate

Run simulations and rank by Top-1% rate.

3Export

Test in The Lab, then export to DK or FD.

OUTPUT

Inside the Engine.

Top-1% rate ranked lineups

Ownership leverage analysis

Stack depth and correlation tags

Exposure vs ownership diff

Good Chalk / Bad Chalk split

Score distribution histograms

Game script simulation per matchup

Simulated 5,000-entry opponent field

Portfolio health and overlap scoring

Reproducible results with deterministic seeding

SPORTS

Built for Every Slate. Tuned for Every Sport.

Each sport behaves differently. Volatility, ownership, correlation, duplication. Our simulation engine adapts accordingly.

NFL

Tournament Stack Authority

Built for large-field GPP dynamics.

QB stack templates with configurable bring-back depthGame script simulation: shootout, blowout, defensive battle, comebackDuplication-adjusted ROI across Classic and Showdown slatesCholesky correlation matrices for QB-WR, QB-opposing DST pairings

NBA

Variance and Ownership Precision

Designed for minutes volatility and late news chaos.

Pace-based teammate and opponent correlationsAdjustable stack intensity and team depth controlsGame scripts: high pace, blowout, grind, overtime7-tier confidence model for minutes uncertainty

MLB

Ceiling-Driven Stack Engine

Embrace the variance. Target the right tail.

Team offense correlations and pitcher-opponent modelingStack depth variance for ceiling buildsGame scripts: slugfest, pitching duel, late rallyChalk duplication penalties across lineup set

NHL

Correlation and Compression Awareness

Thin margins. Real leverage.

Linemate and power play correlation modelingGame scripts: track meet, goalie duel, comeback OTOwnership compression detection and leverage scoringContest size scaling for field simulation accuracy

ELITE

Stop Guessing. Start Solving the Slate.

A strategic blueprint for every slate. Automatically generated from 50,000 simulations. Instantly actionable.

Chalkboard — Slate IQSlate DNA, Strategy Notes, Game Breakdowns, Chalk vs Leverage

Chalkboard — Slate DNA, strategy notes, and game breakdowns

SUPPORTED

NFLNBAMLBNHL

The field is slow. You don't have to be.

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Starting at $20/week. Cancel anytime.