Price a bet, price a parlay, and track a live total. Nothing here takes a wager or gives advice.
Enter what you are risking and the American price. It works out what the bet pays, then shows that same price as a decimal, a fraction and an implied probability.
$100.00 at -110 wins $90.91, and the ticket pays back $190.91 including your stake. Total return is your stake multiplied by the decimal price, 1.9091.
The implied probability is what the price says the chance is, and it is deliberately not a fair one. Both sides of a real market add up to more than 100 percent, and the surplus is the house edge — two sides at -110 sum to 104.8 percent, so the extra 4.8 is the vig. Read this number as the price you are being charged, not as the true chance of the outcome.
Build a two-to-ten leg parlay off today's board or type your own legs, and compare the vig-free price, our model's fair price, and what a book is actually quoting. This is the LineGrade tool — the same one, not a copy.
Build a 2–10 leg parlay and see three prices side by side: the vig-free price if every leg's mid-price were combined with no extra markup, LineGrade's fair price using its own model probabilities, and — if you enter it — what the sportsbook is actually quoting for that exact combination.
How this works. Pick a team from today's board and its Market % and Model % pop in automatically — or type your own for a game outside today's tracked slate (leave Model % blank and it defaults to the market number, meaning "no model view on this leg, no edge assumed"). This assumes every leg comes from a separate, unrelated game. Same-game parlays have real correlation between legs that breaks this assumption — not supported here yet.
One more thing worth knowing going in: a small edge on each leg compounds, it doesn't add. That's real math, not the model overstating itself, but it's worth reading the number with that in mind.
| # | Leg | Moneyline | Market % (mid-price) | Model % | |
|---|---|---|---|---|---|
| No legs yet — add one below or pick from today's slate. | |||||
Or pick straight from today's slate: choose a league, check off the sides you want, submit.
The NBA, WNBA board could not be loaded right now — the live odds feed errored, so those games are missing from this picker, not missing from the slate. You can still type any leg in by hand above. The board refills on its own once the feed recovers; if this persists, check remaining credits with the Test Live Odds Feed button on the admin Odds page — the monthly quota running out looks exactly like this.
Track scoring pace during a live basketball game and project the final total against the number you bet. NBA, WNBA, college and FIBA clocks.