Mammoth PicksSee today's picks
Back

What does +100 mean in betting?

+100 is even money: risk $100 to win $100, or $10 to win $10. The price says 50%, so any bet that wins more than half the time makes money at +100.

50.00%Implied chance
2Decimal odds
1/1Fraction
$10$10 bet wins
$100$100 bet wins
$100Bet to win $100
50.0%Break-even win rate
$20$10 bet returns

In plain words

+100 is even money: whatever you bet is what you win. $10 wins $10, and $100 wins $100.

The price says exactly 50%. A bet that wins 51 times in 100 at +100 makes money; one that wins 49 times loses it.

A true +100 on both sides is rare, because the book adds its cut somewhere. When one side shows +100, the other is often -120, and together they add up to 104.5%.

Where you see +100

Even money. Common on close baseball and hockey moneylines and on some player props, rarely on both sides at once.

100 bets at +100

Win rateWins in 100Result on 100 bets of $10
47.0%47-$60
50.0% (break-even)50$0
53.0%53+$60

Three points above break-even turns 100 bets of $10 at +100 into about $60 of profit; three points below loses about the same. The edge is the few points, not the pick.

Prices next to +100

PriceChance$10 winsBet to win $100
-11553.5%$8.70$115
-11052.4%$9.09$110
-10551.2%$9.52$105
+10050.0%$10$100
+10548.8%$10.50$95.24
+11047.6%$11$90.91
+11546.5%$11.50$86.96

One step better for you, +105 pays $5 more than +100 on every $100 bet that wins.

Check any price

Convert +100 or any other price, see what a ticket pays, or get a suggested bet size for your bankroll.

Questions

What does +100 mean in betting?

+100 is even money: risk $100 to win $100, or $10 to win $10. The price says 50%, so any bet that wins more than half the time makes money at +100.

How much does a $10 bet win at +100?

$10 in profit. You get $20 back in total: your $10 plus the win. A $100 bet wins $100.

What win rate do I need at +100?

More than 50.0% to make money over time. That is the price's implied chance, also called the break-even rate.

What is +100 in decimal odds?

2. A $1 bet returns $2 in total. As a fraction it is 1/1.

What is even money?

A price where you win what you risk: +100, or 2.00 in decimal odds and 1/1 as a fraction. The implied chance is exactly 50%.

Today's free pick

One pick a day, free, with its price, the book and a suggested bet size, posted at least 30 minutes before the game. Every result stays public.

See today's free pick

21+ · Gamble responsibly · 1-800-GAMBLER

Keep reading