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Staking Plan Comparator

Compare flat, percentage, Kelly Criterion, Half Kelly, Fibonacci, and square root staking strategies side-by-side. Run Monte Carlo simulations to see how each approach handles bankroll growth, drawdowns, and bust risk over thousands of bets.

Presets

Configuration

$
%
x
% of bankroll
Stake % has no effect on Kelly strategies (Kelly computes its own optimal fraction).
Edge+4.00%
Full Kelly Fraction4.00%

Configure & Run

Select your strategies, set your parameters, and click Run Simulation to compare staking plans across 1000 Monte Carlo iterations.

Understanding Staking Plans

What is a Staking Plan?

A staking plan is a systematic method for determining how much to bet on each wager. Rather than betting arbitrary amounts, a staking plan uses mathematical rules based on your bankroll size, edge, or recent results. The goal is to maximize growth while controlling risk of ruin. Even with a positive edge, poor staking can lead to bust. Conversely, smart staking extends your bankroll life and compounds winners efficiently.

Kelly Criterion Explained

The Kelly Criterion calculates the mathematically optimal fraction of your bankroll to wager: f* = (bp - q) / b, where b = decimal odds - 1, p = win probability, q = 1 - p. Full Kelly maximizes the geometric growth rate but can be volatile. Half Kelly halves the stake for smoother equity curves with ~75% of Kelly's growth rate. Most professional bettors use fractional Kelly (25-50%) because edge estimates are rarely precise.

Conservative vs Aggressive

Flat staking (fixed % of initial bankroll) is the most conservative, your bet size never changes, providing stable and predictable risk. Percentage staking adjusts to current bankroll, naturally reducing bets during drawdowns (protective) but also reducing bets when ahead (slower compounding). Full Kelly is the most aggressive: it sizes bets perfectly for growth but amplifies variance. The “right” plan depends on how accurately you know your edge and how much variance you can tolerate.

When to Change Plans

Switch staking plans when your situation changes: if your edge estimate becomes more or less certain, if your bankroll-to-income ratio shifts, or if you notice emotional reactions to variance. Start conservative (flat or Half Kelly) and only move toward full Kelly as you build a track record proving your edge is real. If your bust rate exceeds 5% in simulations, your staking is too aggressive. The best plan is one you can execute consistently without tilting.
Key Formulas
Kelly: f* = (b * p - q) / b where b = odds - 1, p = win prob, q = 1 - pEdge: (p * odds) - 1 or equivalently b * p - qFlat: stake = bankroll_initial * stake_pctPct: stake = bankroll_current * stake_pctSqrt: stake = sqrt(bankroll_current) * scale_factorSharpe: mean_return / std_return (risk-adjusted performance)

Keep what you worked out.

A free account saves your bankroll plans, sessions and the results you run here, on every device. No card, no upsell.

A positive expected value is not a promise of profit, and past results do not predict the next ones. These numbers assume your probability estimate is right: a small error in the edge moves the bet size a lot.
Next

Goes with this. Run Monte Carlo sims of Fibonacci, D'Alembert, Labouchere, Paroli, 1-3-2-6 and Oscar's Grind side by side on the same bankroll and edge.

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