Convert -300 to Decimal Odds (1.33)

American
-300
Decimal
1.33
Fractional
1/3
Implied Prob.
75.0%

Payout Table — -300 Odds

Bet SizeProfitTotal Payout
$10.00+$3.33$13.33
$25.00+$8.33$33.33
$50.00+$16.67$66.67
$100.00+$33.33$133.33
$250.00+$83.33$333.33
$500.00+$166.67$666.67

What Does -300 Mean?

A big favorite — risk $300 to win $100. Equivalent to 1.33 decimal or 1/3 fractional. You'll see this on MLB moneylines when an ace faces a weak rotation arm.

At -300 odds, the implied probability is 75.0%. A $100 bet returns $133.33 total — that's $33.33 profit plus your $100 stake.

In decimal format, -300 equals 1.33. In fractional format, it's 1/3. And in American format, it's -300.

Related Conversions

-250

-250 · 1.40 · 2/5 · 71.4%

-400

-400 · 1.25 · 1/4 · 80.0%

-200

-200 · 1.50 · 1/2 · 66.7%

Need a custom conversion? Use the interactive calculator.

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Frequently Asked Questions

What is -300 in decimal odds?
+
-300 American odds equals 1.33 in decimal odds. This means a $1 bet returns $1.33 total (including your original stake).
What is the implied probability of -300 odds?
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-300 American odds imply a 75.0% chance of winning. This is the break-even win rate before any vig adjustment.
How much do I win on a $100 bet at -300?
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A $100 bet at -300 pays $133.33 total — that's $33.33 profit plus your $100 stake back.
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