Tools
The line math we use on the desk. Convert odds, strip the vig, size a bet honestly, and check whether you beat the close. Every formula is shown and every calculation runs in your browser. Market-neutral: these compute numbers, they do not predict outcomes.
Core math
Odds converter American, decimal, fractional, and implied probability. Type in any field, the rest follow. Open → No-vig / de-vig Strip the book’s vig to a fair implied probability. Handles 2-way and 3-way markets, shows the hold. Open → Expected value (EV) Turn a win probability into a decision. EV per dollar and per stake at the price you are offered. Open → Parlay Combine legs into one ticket: payout, combined true probability, and the total edge if any. Open →
Sizing
Hedge Size a hedge on the other side to lock a profit or cap a loss across two books. Open → Arbitrage Detect a 2-way arb, size both legs, and show the guaranteed profit percent if it exists. Open → Kelly stake Full and fractional Kelly sizing for an edge you actually believe in. As good as your estimate. Open → Bankroll / unit sizing Set a unit as a percent of bankroll, then size any play in units against it. Open →
Edge & proof
CLV tracker Enter your bet odds and the closing odds. We de-vig both and show whether you beat the close, by how much. Open → Line watchMembers DraftKings, FanDuel and BetMGM on every upcoming CFB and NFL game: the best number on each side, the move since first capture and in the last 24 hours, key numbers, and our locked picks against the market. Open → Props researchMembers Every NFL player prop we capture beside the player's own games: how often he cleared that exact line over his last 5, last 10 and each season, with n, plus the consensus line and no-vig price. Open → Alt line pricerMembers What a half point was worth: how often past NFL and CFB closing favorites covered each alternate number, and how often games landed on each key number and total, with n on every share. Open →
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These are market-neutral utilities. They reduce the vig you pay and size a bet you have already decided on. They are not predictions and not a guarantee of profit. Compare lines across books. 21+ · research, not advice.