Five powerful tools to calculate returns, build multis, find value bets, and manage your bankroll like a pro.
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Bet Returns
🔗
Multi Builder
📊
Value Finder
🎯
Kelly Criterion
📐
Implied Prob
Bet Returns Calculator
Enter your stake and odds to instantly see potential returns and profit. Supports win, each-way and place-only bets.
Results
Potential Return$250.00
Potential Profit$150.00
Multi / Parlay Builder
Build a multi bet with 2 to 15 legs. Combined odds and potential returns update as you add selections.
Multi Results
Legs2
Combined Odds -
Potential Return -
Potential Profit -
Value Bet Finder
Compare your estimated probability with the bookmaker's odds to find value. A positive expected value means the odds are in your favour long-term.
Value Analysis
Expected Value (EV)
+10.00%
✓ Value Bet
True Odds (from your probability)1.82
Edge+10.00%
−50%0%+50%
What this means: At your estimated 55% probability, the true odds should be 1.82. The bookmaker is offering 2.00, which is higher - meaning you have a 10.00% edge. This is a value bet.
Kelly Criterion Calculator
The Kelly Criterion tells you the optimal fraction of your bankroll to wager, based on your perceived edge. Half-Kelly is recommended for most punters to reduce variance.
Kelly Recommendation
Full Kelly Fraction10.00%
Full Kelly Stake$100.00
Half Kelly Stake (Recommended)$50.00
⚠️ Caution: Kelly suggests staking more than 10% of your bankroll. This carries high risk. Consider using Half Kelly or a fractional Kelly approach to protect your bankroll from large drawdowns.
Full Kelly vs Half Kelly: Full Kelly maximises long-term growth rate but comes with large swings. Half Kelly sacrifices ~25% of the growth rate for ~50% less variance - a much smoother ride. Most professional punters use half or quarter Kelly to manage risk.
Implied Probability Calculator
Convert decimal odds to their implied probability. Toggle dual-team mode to calculate the bookmaker's overround (margin).
Dual-team mode (calculate overround)
40.0%Implied
Result
Decimal Odds2.50
Implied Probability40.00%
Home Implied
57.14%
Away Implied
45.45%
Overround / Margin
Total Implied Probability102.60%
Bookmaker Margin2.60%
True Home Probability55.70%
True Away Probability44.30%
What is overround? A fair market totals exactly 100%. The amount above 100% is the bookmaker's margin - their built-in edge. Lower overround means better value for punters. A margin of 2–5% is typical for major AFL markets; anything above 8% is considered high.