−300 odds: what they mean and what they pay
At −300 you bet $300 to win $100 in profit, $400 back in all. The price implies a 75.00% chance, so you need to win more than 75.00% of these bets to come out ahead.
The same price in every format
| American | −300 |
|---|---|
| Decimal | 1.333 |
| Fractional | 1/3 |
| Implied chance | 75.00% |
| Break-even win rate | 75.00% |
What −300 pays
| Bet | Profit if it wins | Total back |
|---|---|---|
| $10 | $3.33 | $13.33 |
| $25 | $8.33 | $33.33 |
| $50 | $16.67 | $66.67 |
| $100 | $33.33 | $133.33 |
| $250 | $83.33 | $333.33 |
| $1,000 | $333.33 | $1,333.33 |
Is −300 good odds?
It depends on how likely the bet is to win, not on the number itself. −300 is a good price on a side that wins more than 75.00% of the time and a bad one on a side that wins less. If a market kept nothing, the other side of a −300 bet would be +300; real books price it worse than that, and the gap is their cut. At −110 on both sides, the most common spread and total price, the cut is 4.76%. Which book keeps the least differs: every sportsbook's cut, measured.
As a price, −300 makes the side a heavy favorite.
What a better price is worth
Find −295 instead of −300 on the same bet and the win rate you need drops from 75.00% to 74.68%. Over 100 bets of $100 that win 75.00% of the time, −300 breaks even and −295 comes out about $42.37 ahead: the same picks, a better price. Books often differ by that much on the same game: the board shows which one pays the most.
−300 in a parlay
Two legs at −300 combine to decimal 1.778 (about −129): $100 would return $177.78. Each leg's cut compounds, so a parlay keeps more for the book than a single bet. Parlay calculator.
Questions
What does -300 mean in betting?
-300 means you bet $300 to win $100 in profit, returning $400 in all.
How much do I win on a $100 bet at -300?
$33.33 profit, $133.33 back in all if it wins.
What is -300 as a percentage?
-300 implies a 75.00% chance. That's also the share of bets you'd need to win to break even.
What is -300 in decimal odds?
1.333. In fractional odds it's about 1/3.
Is -300 a good bet?
Only if the side wins more than 75.00% of the time. The price alone can't tell you: compare it with other sportsbooks' prices on the same bet, since a better price lowers the win rate you need.