Guides
How promo conversion, arbitrage, and +EV betting work, with the math written out. New to this? Start with odds and implied probability, then converting bonus bets.
Promo conversion
How to Convert Sportsbook Bonus Bets Into CashStep-by-step guide to turning sportsbook bonus bets into withdrawable cash by hedging at a second book. Formula, worked examples, and common mistakes.What's a Good Bonus Bet Conversion Rate? The Math Behind 70% to 80%Why bonus bets convert at 65% to 80%, how odds and market margin change your rate, how much hedge cash you need, and how to pick the best odds.Matched Betting in the US: How Promo Hedging Actually WorksHow matched betting works in the US without exchanges: qualifying bets, bonus bet conversion, reload offers, and the practical limits, with examples.How to Value Any Sportsbook Welcome Offer in DollarsPut a dollar value on bet-and-get offers, second-chance bets, and deposit matches. Formulas and worked examples for common sportsbook welcome offers.No-Sweat and Second-Chance Bets: How to Extract the Most ValueHow no-sweat, second-chance, and first-bet-on-us offers work, what they're worth, and how to hedge them for a locked profit. Formula and examples.Profit Boosts and Odds Boosts: When They're Worth It and How to Hedge ThemHow sportsbook profit boosts and odds boosts work, how to calculate the boosted price, when to hedge versus let it ride, and which markets pay most.
Arbitrage
Arbitrage Betting: The Complete Guide to Sure BetsHow sports arbitrage betting works, why arbs appear, what you can realistically make, and the risks: voided bets, rule mismatches, limits, and capital.How to Calculate an Arbitrage Bet (Worked Examples)Step-by-step arbitrage math: spotting an arb, splitting stakes, fixed-stake arbs when a book limits you, rounding stakes, and 3-way soccer arbs.
+EV betting
Positive EV Betting Explained: How Sharp Bettors Profit Long TermWhat +EV betting is, how to find +EV bets by comparing US sportsbooks with sharp lines like Pinnacle, how much variance to expect, and how to size bets.Why Pinnacle's Line Is the Market's Best Guess (and How US Bettors Use It)Why Pinnacle's low-margin, winners-welcome model makes its odds the benchmark for fair prices, and how US +EV bettors use its lines as a reference.How to Remove the Vig: Multiplicative, Additive, Power, and Worst-Case MethodsLearn how to remove the bookmaker's margin (devig) to find fair odds. Compare multiplicative, additive, power, and worst-case methods with worked examples.Closing Line Value (CLV): The Best Proof Your Bets Are GoodWhat closing line value is, how to calculate it against a devigged sharp close, why it predicts profit better than results, and how to track it.American, Decimal, and Fractional Odds: A Plain-English Guide to Implied ProbabilityRead American, decimal, and fractional odds, convert them to implied probability, and spot the vig. The foundation for promo and +EV betting.
Bankroll and business
The Kelly Criterion: How Much to Bet When You Have an EdgeHow the Kelly criterion sizes bets for maximum long-run growth, why pros bet a fraction of Kelly, and how to apply it to +EV sports bets.How Big a Bankroll Do You Need? Variance, Drawdowns, and StakingHow much money you need for promo conversion, arbitrage, and +EV betting, why drawdowns happen, and simple staking rules that keep you in the game.Why Sportsbooks Limit Winning Bettors, and How to Last LongerWhy US sportsbooks limit winning and promo-focused bettors, what triggers it, what happens to your balance, and legitimate ways to last longer.Sports Betting Taxes in 2026: Bonus Bets, W-2Gs, and the New 90% Loss RuleHow federal taxes apply to sports betting in 2026: bonus bet winnings, W-2G thresholds, the new 90% loss deduction cap, and why hedgers can overpay.ProfitDuel Review 2026: Plans, Tools, Pricing, and Who It's ForAn honest look at ProfitDuel's Promo Converter, Arb Matcher, EV Matcher, and Boost Matcher: plans, 2026 pricing, the $1 trial, pros, and cons.
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