Tools & Calculators
Interactive mathematical tools and probability models for odds margin removal, positive expected value identification, and optimal staking simulation.
No-Vig Fair Odds Calculator
Compare Multiplicative, Additive, Power and Shin probability estimates under their stated margin-allocation assumptions.
P_fair = (1 / O_i) / Σ(1 / O_k) +EV Expected Value Calculator
Quantify betting edge and calculate expected monetary value per wager based on true probabilities and market odds.
EV = (P_win × (Odds - 1)) - (P_loss × 1) Kelly Criterion Simulator
Calculate optimal bet sizing using full, half, and quarter Kelly criterion to maximize geometric bankroll growth while minimizing drawdown.
f* = (b × p - q) / b Poisson Goal Model
Simulate football goal distributions, project 1X2 probabilities, Over/Under totals, and exact score matrices.
P(X=k) = (λ^k · e^-λ) / k! Parlay Margin Calculator
Quantify exponential bookmaker margin compounding across multi-leg accumulators, Same Game Parlays, and combined bets.
M_parlay = 1 - Π(1 - Mᵢ) Arbitrage & Surebet Calculator
Calculate stakes and the minimum net payoff for complete two-way or three-way outcomes, including the effect of rounding. Execution and settlement must match the inputs.
L = Σ(1/Oᵢ) < 1.00 Asian Handicap Calculator
Calculate payouts, half-wins, half-losses, and push refunds across all quarter, half, and whole Asian handicap lines.
H_split = (H - 0.25, H + 0.25) Hedge Bet & Cashout Calculator
Compare hedge stakes, outcome payoffs and a cashout quote under the entered prices and settlement assumptions.
S_hedge = (S₁ · O₁) / O_hedge Free Bet & Matched Betting Calculator
Compare SNR and SR hedge payoffs and explore an illustrative bonus-credit scenario under stated assumptions.
S_hedge = F · (O_A - 1) / O_B Compare the same market
Partner links
1win Sports: check the event, quoted odds and settlement rules
What the price includes → Visit 1win Sports 18+ · Terms on site
Stake Sportsbook: compare the same event, market and settlement rules
What the price includes → Visit Stake 18+ · Terms on siteCheck the current price, exact market, settlement rules and availability in your country. A calculator result depends on its assumptions and does not verify a live betting opportunity.