When quoted as a negative number the betting odds figure represents the unit amount a bettor would need to risk in order to win 100 units. US-style odds (most common, not surprisingly, found in the United States) are quoted as either a positive or a negative number. Many Asian oriented sportsbook will also quote odds in “Hong Kong” style, “Indonesian” style, and “Malaysian” style formats. Traditional or “Fractional” style (aka “British” or “traditional”). There are three major formats in which most online sportsbooks quote odds:Įuropean Style or “Decimal” style (aka “European” or “continental”).