THE SPORTS KINGODDS
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Market tools

Every tool in The Sports King Odds: what it does, who it's for and what to check.

Live now

Free with a free account during launch.

Odds Screen LiveEvery book's price on one row, the best one marked, and the no-vig fair line beside it.Sportsbook Props LiveEvery player prop and alternate line at your books, priced against a fair line built without that book.Game Lines LiveMoneylines, spreads, totals, team totals and alternates priced against the market's fair line.+EV Sniper LiveEvery market at every book on one board, ranked by expected value.Fantasy Props LiveEvery pick'em leg priced against the sportsbook market and the app's real break-even, with a slip builder and the best slips by EV.Parlay builder LiveThe best 2- to 6-leg parlays at one book, built from legs that are each +EV against the market, with same-game pairs checked.Arbitrage LiveBack every side at different venues so one always pays, at your net price after fees, with the stakes split for your size.Low Hold LiveThe lowest-vig markets across your books, for promo conversion, rollover and hedging, with the stakes split for you.Middles LiveOpposite bets that can both win, priced on the fitted fair ladder with pushes included, ranked by EV.Prop Discrepancies LivePlayer lines one book or pick'em app hangs away from the rest of the market, ranked by the fair chance to hit.Promo converter LiveBonus bets, no-sweats, boosts, site credit and qualifying bets hedged into a fixed amount, or graded on EV, across every market at your books.

In build

Same engine, screens on the way.

Whale Watch Coming soonLarge Kalshi and Polymarket trades matched to the best retail price still available. In build.

Always free

No account needed.

Calculators FreeEV, no-vig with five devig methods, Kelly, arbitrage, hedge, parlay, bonus conversion, hold, pick'em break-even, exchange fees and odds conversion.Learning Center FreeHow fair prices are built and how to read every number on the screen.

The Sports King Odds is market math only. Fair prices come from the books themselves, with the vig removed, never from The Sports King board's model. Exchanges and prediction markets are priced at your net price after their published fees, and everything is pregame.

The Odds Screen, Sportsbook Props, Game Lines, Fantasy Props, the +EV Sniper, the Parlay builder, Arbitrage, Low Hold, Middles, Prop Discrepancies and the Promo converter are live. Whale Watch is in build on the same engine; each page below says which is which. During launch the market tools are free with a free account (sign in with Discord). The calculators and the Learning Center are always free, with no account.

Odds only: The Sports King doesn't take bets. Confirm every price at the book before you bet.