A calculator answers what one combination returns. An optimizer compares several possible combinations under budget, probability, confidence, and concentration constraints.
Last reviewed: 2026-08-10
Use the calculator for one known combination
Choose the parlay calculator when you already know the legs and only need combined odds, estimated hit probability, payout, and profit.
Use the optimizer for scenario comparison
Choose the optimizer when you want to compare two-leg and three-leg combinations, risk modes, confidence adjustments, and concentration within one simulated budget.
Both depend on input quality
Neither tool discovers a guaranteed edge. Odds, probabilities, correlation assumptions, fees, and settlement rules remain the user's responsibility.
Frequently asked questions
Which tool is more accurate?
They answer different questions. Accuracy depends primarily on valid odds, probability estimates, and correlation assumptions.
Does the optimizer place bets?
No. It produces educational simulations only.