
UNDERSTANDING THE ODDS
SPORTS BETTING FUNDAMENTALS
WHAT ARE THE ODDS?
TwinSpires uses the American odds system, which displays the price of
a wager based on bets of $100. Odds for an underdog are represented
by a “plus” sign and indicate how much you would win if you bet $100.
Favorites are designated by a “minus” sign, where the odds reflect how
much you have to wager in order to win $100.
ODDS WAGER WINNINGS
PHI -165 = $165 TO WIN $100
ATL +150 = $100 TO WIN $150
WHAT DO PLUS & MINUS MEAN?
PHILADELPHIA -165
ATLANTA +135
WHAT IS THE MINUS?
The MINUS designates the FAVORITE in
the match, or the side most likely to win.
The larger the odds are, the more likely
the favorite is to win.
WHAT IS THE PLUS?
The PLUS designates the UNDERDOG in
the match, or the side which is less likely
to win. Bigger underdogs have larger
payouts, but can be riskier plays.
You do not have to wager $100 every time. The American odds system simply shows the ratio of risk/reward. The bet slip in the
sportsbook will also calculate winnings for you before you lock in your bet.
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