Sports Bankroll Calculator
Plan bankroll size and unit staking to survive expected variance.
About Sports Bankroll Calculator
A bankroll of fifty units or more absorbs normal variance, while ten units risks ruin from an ordinary losing streak. Profit comes from turnover multiplied by edge, so both matter. Most betting bankrolls fail from variance rather than from a negative edge, which makes unit sizing the more important decision.
Formula
Sports Bankroll
Unit stake = bankroll × unit percentage; expected profit = turnover × edge
- unit
- The standard stake, expressed as a share of bankroll
- risk of ruin
- The chance a losing run exhausts the bankroll
Worked example
With the default values below, Sports Bankroll Calculator returns Unit Stake of $60.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Bankrollminimum 0
- 4,000
- Unit size as a share of bankrollaccepts 0–100 %
- 1.5 %
- Bets per monthminimum 0
- 60
- Expected edge per betaccepts 0–100 %
- 3 %
- Average decimal oddsaccepts 1.01–100
- 1.95
Results
- Unit Stake
- $60.00
- Expected Monthly Profit
- $108.00
- Units in the Bankroll
- 66.7
- Monthly Turnover
- $3,600.00
- Risk Assessment
- Conservative — the bankroll absorbs normal variance
Step by step
- 1Values used
- 2Sports Bankroll
- 3Unit Stake= 60.00
- 4Expected Monthly Profit= 108.00
- 5Units in the Bankroll= 66.7
- 6Monthly Turnover= 3,600.00
- 7Risk Assessment= Conservative — the bankroll absorbs normal variance
Assumptions and limits
- The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- These figures are estimates based on population-average formulas and are intended for training and recreational planning only. They are not medical advice. Consult a qualified health professional before starting or changing an exercise programme, particularly if you have an existing medical condition.
- This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
These figures are estimates based on population-average formulas and are intended for training and recreational planning only. They are not medical advice. Consult a qualified health professional before starting or changing an exercise programme, particularly if you have an existing medical condition.
Frequently Asked Questions
How is Sports Bankroll calculated?
Unit stake = bankroll × unit percentage; expected profit = turnover × edge A bankroll of fifty units or more absorbs normal variance, while ten units risks ruin from an ordinary losing streak. Profit comes from turnover multiplied by edge, so both matter.
Why does Sports Bankroll matter?
Most betting bankrolls fail from variance rather than from a negative edge, which makes unit sizing the more important decision.
What values do I need to enter?
This calculator takes 5 inputs: Bankroll, Unit size as a share of bankroll, Bets per month, Expected edge per bet, Average decimal odds. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.