A contract price and a moneyline are the same bet.
One is quoted in cents with no vig. The other has the book’s margin baked in.
Cents to odds
| Price | Probability | American | Decimal |
|---|---|---|---|
| 10¢ | 10.0% | +900 | 10.00 |
| 25¢ | 25.0% | +300 | 4.00 |
| 47¢ | 47.0% | +113 | 2.13 |
| 50¢ | 50.0% | −100 | 2.00 |
| 75¢ | 75.0% | −300 | 1.33 |
| 90¢ | 90.0% | −900 | 1.11 |
A book’s two sides sum to more than 100% — that excess is its margin. Strip it out and you get a number you can hold against a contract price. If the pair sums to less than 100%, this refuses: a third outcome exists that those two prices never covered, and de-vigging anyway invents an edge that is not there.
A fair price is only half of it — both venues charge to trade. See what a trade actually costs →
Informational only, not trading advice.
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The terminal runs this on every market on both exchanges continuously, and prints the gap between them on the row.
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