To calculate winnings on fractional odds, multiply your bet by the top number (numerator), then divide the result by the bottom (denominator). So a $10 bet at 5/2 odds is (10 * 5) / 2, which equals $25. A $10 bet at 2/5 odds is (10 * 2) / 5, which is $4.
The odds and what they mean
The negative (-) sign indicates that the Cowboys are the favorites, while the positive (+) sign indicates that the New York Giants are the underdogs. With the spread set at 2.5 points, a bet on the Cowboys would mean that they would have to win by more than 2.5 points (3 or more) in order for you to win that bet.
The minus sign means that the final score will have the spread number subtracted from it. The plus sign means that the team's final score will have the spread number added to it. In summary, the point spread is a calculated prediction of how much a team will win or lose by.Jun 10, 2020
- Odds are most simply calculated as the number of events divided by the number of non-events.
- The formal way to describe the odds is as the probability of the event divided by the probability of the non-event.
- So odds are the ratio of two fractions:
- If event occurs 1 of 5 times, probability = 0.2.
Odds of an event happening is defined as the likelihood that an event will occur, expressed as a proportion of the likelihood that the event will not occur. Therefore, if A is the probability of subjects affected and B is the probability of subjects not affected, then odds = A /B.
Fractional odds are the ratio of the amount (profit) won to the stake; decimal odds represent the amount one wins for every $1 wagered. American odds, depending on the negative or positive sign, either indicate the amount one needs to wager to win $100 or the amount one would win for every $100 staked.