Monte Carlo Simulation Engine

Simulate the draft before the room panics.

Run 10,000 scenarios with real ADP data. See tier cliffs, probability ranges, and mock outcomes — so you walk into your draft knowing exactly where value breaks.

Draft Simulator

Practice Against AI Before Draft Day

Run unlimited mock drafts with Monte Carlo simulation to test every strategy before your money league draft.

AI Draft Opponents

Draft against intelligent AI that mirrors real draft behavior — no more unrealistic bot picks falling to you.

Monte Carlo Engine

5,000 simulations per draft. See floor, ceiling, and expected outcomes for every pick decision you make.

Your League Settings

PPR, half-PPR, superflex, 2QB — configure scoring rules to match your league for accurate projections.


League Configuration

Required
Required
Required
Required

Running Monte Carlo Simulation

Modeling draft behavior across randomized scenarios...

Scenarios: 0 / 100
That was 100 generic simulations. Paid users run 10,000 with THEIR settings. Unlock Pro — $29/season
Every pick you make without MC simulation is a pick your opponent already optimized against you.
Your draft is in 87 days. 2,341 managers in similar leagues already ran their simulations.

How Monte Carlo Simulation Wins Drafts

Three steps between you and a draft room where you already know every tier cliff, every reach, and every steal.

1. Configure Your League

Set your team count, scoring format, roster positions, and draft position. The simulator models the exact constraints you'll face on draft day.

2. Run 10,000 Simulations

Each simulation randomizes draft behavior using real ADP data, position runs, and historical variance. The engine tracks every pick across every scenario.

3. See the Distribution

Get P10/P50/P90 projections for every pick. Spot tier cliffs where value drops off. Calculate your championship probability against the league average roster.

ADP Data
League Config
Draft Engine
10,000 Runs
P10 / P50 / P90
Tier Cliffs

Why Monte Carlo Simulation Beats ADP Every Time

Fantasy football draft preparation has evolved. For years, managers relied on Average Draft Position (ADP) as the primary decision-making tool. ADP tells you where players are drafted on average, but it has a fatal flaw: it collapses an entire distribution of outcomes into a single number. A player with ADP 5.2 could go anywhere from pick 3 to pick 12, and ADP won't tell you which outcome is more likely in YOUR specific draft.

The Problem with Single-Point Estimates

When you draft based on ADP alone, you're making decisions with incomplete information. ADP is the average of thousands of drafts with different team counts, scoring formats, and draft strategies. Your 12-team PPR league with three WR starters behaves nothing like the 10-team standard league that dominates ADP data. You need simulation that accounts for your exact league parameters.

Monte Carlo simulation solves this by running thousands of randomized drafts under your specific constraints. Each scenario models realistic draft behavior: position runs, reach tendencies, and the cascading effects of every pick. The output isn't a single number — it's a complete probability distribution showing the floor (P10), median (P50), and ceiling (P90) for every player at every draft slot.

Detecting Tier Cliffs Before They Trap You

A tier cliff occurs when there's a significant drop in expected value between consecutive players at a position. ADP smooths over these cliffs because it reports averages. Monte Carlo simulation reveals them clearly: when the P50 of Player A is 11.2 PPG and Player B's P50 drops to 8.4 PPG, you see a 2.8-point cliff that demands immediate action. Missing a tier cliff by one pick can cost you 30+ fantasy points over a season.

Championship Probability, Not Just Player Rankings

The ultimate metric isn't which individual players you draft — it's the probability that your complete roster wins the championship. Our simulator evaluates every simulated roster against league-average and optimal constructions, giving you a championship probability score. This single number tells you whether your draft strategy is actually putting you in contention or just filling a roster with good-but-not-great players.

The Monte Carlo approach is the same methodology used in financial risk analysis, weather forecasting, and poker strategy optimization. It doesn't predict the future — it maps the full range of possible futures so you can make decisions that perform well across scenarios, not just in the one outcome you're hoping for.

Quantitative Edge in Every Round

In early rounds, the simulation identifies which elite players have the tightest distributions (safest picks) versus which have high variance (boom-or-bust). In middle rounds, it spots the players most likely to fall to your pick based on ADP drift and position scarcity. In late rounds, it finds the upside plays with the widest P10-P90 spread — the lottery tickets most likely to return RB2 or WR2 value.

Every recommendation comes with a confidence interval. You'll know not just who to draft, but how confident the model is in that recommendation. That's information that no static rankings list can provide.

Draft Simulator vs. The Competition

Feature Draft Simulator FantasyPros ESPN
Monte Carlo Simulation Yes No No
P10 / P50 / P90 Projections Yes No No
Tier Cliff Detection Yes No No
Championship Probability Yes No No
Custom League Settings All formats Limited ESPN only
Superflex / IDP Support Yes Partial No
Mock Drafts 10,000 scenarios 1-at-a-time 1-at-a-time
Real ADP Data Multi-platform Own data ESPN only
Price Free / $29 Pro $39.99 / yr Free

Frequently Asked Questions

Monte Carlo simulation runs thousands of randomized draft scenarios using real ADP data and historical variance. Each simulation picks players according to realistic draft behavior, then calculates the probability distribution of outcomes for every roster position. Instead of relying on a single ADP rank, you see the full range of possibilities: floor (P10), median (P50), and ceiling (P90) for each pick.
The free tier runs 100 scenarios, which gives a rough shape of the distribution. For more precise results, we recommend 10,000 scenarios (available in Pro). At higher iterations, your P10/P50/P90 estimates stabilize to tight error margins. This is the same approach quantitative analysts use in financial risk modeling.
ADP tells you where players are being drafted on average. Mock drafts give you one practice run. Monte Carlo simulation gives you the probability distribution of every possible outcome. You learn not just where a player goes on average, but the 80% confidence interval of where they'll actually fall in YOUR draft. This lets you identify tier cliffs, reach strategically, and avoid panic picks.
Yes. The simulator supports Standard, PPR, Half-PPR, and Superflex scoring formats. You can configure team count (8-14), number of rounds, and roster positions. Pro users get full IDP support, custom scoring rules, keeper/dynasty pick penalties, and trade value calculations within the simulation.
We backtest against years of historical data across multiple NFL seasons. The Monte Carlo model captures draft-day variance (reaches, runs, position scarcity) that deterministic rankings miss. On average, our P50 estimates fall close to actual results, and tier cliff predictions reliably identify value drop-offs.
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  • Buy-low / sell-high signal engine
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What Drafters Say

Mock Drafts That Actually Prepare You

Ran 50 mocks before my auction draft. Knew exactly when to bid and when to let go. Won 3 leagues last year.
Draft Simulator User
Auction League Champion
The Monte Carlo feature showed me my RB-heavy strategy had a 73% bust rate. Switched to hero RB and won the ship.
Fantasy Manager
12-team Dynasty
Best mock draft tool online. The AI opponents actually make realistic picks instead of reaching for their favorites.
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